5. 2:45-3:45pm Pre-exam Partial Denture (3dda MCQs 406 I Sok Ly)

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| Attempts: 1,440 | Questions: 200 | Updated: Jul 11, 2025
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1. Stability:

Explanation

The correct answer is "ក្រាសធ្មេញដាក់លើក្រអូមណែន និងមិនរំជួល". This answer states that stability is achieved when the weight is placed on the center of gravity and does not shift. Placing the weight on the center of gravity ensures that the object remains balanced and does not tip over.

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5. 2:45-3:45pm Pre-exam Partial Denture (3dda MCQs 406 I Sok Ly) - Quiz

This quiz, titled '5.2:45-3:45pm Pre-exam Partial Denture', assesses knowledge on removable partial dentures, focusing on clasps and connectors. It covers types of clasps, their origins, movements of the mandible, and uses of maxillary major connectors, providing a comprehensive review for dental students.

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2. Support គឺការទ្រក្រាសធ្មេញអោយ :

Explanation

not-available-via-ai

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3. សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែក ដើម្បីជួយការពារធ្មេញដែលនៅសល់ :

Explanation

The correct answer is "អោយរឹងណែនដដែល - កុំអោយរង្គើ" because it means "Keep the area clean - do not litter" which is the most appropriate action to prevent the presence of flies.

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4. More acceptable esthetically and less caries formation for bar clasp is:

Explanation

The I clasp is more aesthetically acceptable and causes less caries formation compared to other types of clasps. This is because the I clasp is a lingual clasp, meaning it is placed on the inside of the teeth, making it less visible. Additionally, the I clasp exerts less force on the abutment teeth, reducing the risk of caries formation.

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5. សមាសភាពនៃធ្មេញដាក់ដោះមួយផ្នែក :

Explanation

The correct answer is "Ponctic and Denture Base."

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6. The kennedy classification of this RPD is:

Explanation

The Kennedy classification of this RPD is Class I mod I because it has a bilateral edentulous area in the posterior region (Class I) and a unilateral edentulous area in the anterior region (mod I). This classification system is used to categorize partially edentulous arches based on the location and extent of the edentulous areas, helping in the design and selection of appropriate removable partial dentures.

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7. The Kennedy Classification for this cast is:

Explanation

The Kennedy Classification for this cast is Class III mod I. This classification system is used to categorize the extent of edentulous areas in a patient's mouth. Class III refers to a situation where there is a bilateral edentulous area located posterior to the remaining natural teeth. Mod I indicates that there is a bilateral edentulous area with a significant ridge present. Therefore, in this case, the patient has a Class III edentulous area with a significant ridge.

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8. Courbe d’occlusion រត់តាម arc de circle ដែលមាន centre របស់វានៅលើ :

Explanation

not-available-via-ai

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9. Interfacial Surface Tension គឺជាលទ្ធភាពរបស់ម៉ូលេគុលៈ:

Explanation

The answer states that both liquids and gases can enter into each other. This suggests that interfacial surface tension is the property that allows liquids and gases to mix together.

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10. Mould គឺការជ្រើសរើសគ្រាប់ធ្មេញដូចជាៈ:

Explanation

The correct answer is "ទំហំ និង រាងរៅ" which means "Size and shape". In the context of moulds, size and shape are important factors to consider when selecting a mould. The size of the mould determines the final dimensions of the product being made, while the shape determines the overall design and appearance. Therefore, considering both the size and shape of the mould is crucial in order to produce the desired product accurately and aesthetically.

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11. ទិសដៅធ្មេញដោះដាក់មួយផ្នែកអោយមានទំរង់ៈ:

Explanation

The correct answer is "មុខល្អ" because it means "good direction" or "good goal" in English. This answer is the most appropriate and positive choice among the given options.

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12. An ideal design a major connector should possess the following qualities:

Explanation

The ideal design of a major connector should possess all the mentioned qualities. Unification refers to the ability of the major connector to connect various components of a dental prosthesis. Stress distribution ensures that the forces exerted on the prosthesis are evenly distributed to prevent damage. Cross arch stabilization helps in stabilizing the prosthesis by connecting it to multiple teeth or implants. Therefore, all the mentioned qualities are important for an ideal major connector design.

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13. The diagnosis of master cast of RPD be for design framework should be:

Explanation

The diagnosis of the master cast of RPD for design framework involves several important steps. First, determining the path of insertion is crucial to ensure that the framework can be easily inserted and removed from the patient's mouth. Second, determining the height of contour helps in designing the framework to provide proper support and stability to the denture. Lastly, determining the parallelism of abutments is important to ensure that the framework can be properly seated on the abutment teeth. All of these steps are essential for a successful design framework, making all the options correct.

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14. The goal of extension of RPD framework should be:

Explanation

The goal of the extension of the RPD framework should include stability, function, occlusion, and tissues adaptation. This means that all of the options listed are correct and should be considered when extending the RPD framework.

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15. សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:

Explanation

The correct answer suggests that the purpose of growing facial hair is to regain a sense of masculinity.

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16. All of the following clasps are infrabulge clasps except ?:

Explanation

not-available-via-ai

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17. An area undercut may preclude the selection of :

Explanation

An area undercut refers to a situation where there is insufficient space between the tooth and the clasp for proper engagement. This can prevent the clasp from securely fitting around the tooth and may cause instability or discomfort for the patient. An infrabulge clasp is designed to engage the undercut area of the tooth, so if there is already an undercut present, using an infrabulge clasp would not be necessary or appropriate. Therefore, an infrabulge clasp may be precluded in this situation.

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18. Denture Base គឺជាកន្លែងដែលគេដាំៈ:

Explanation

The correct answer is "គ្រាប់ធ្មេញ" which means "Acrylic" in English. This answer is correct because acrylic is commonly used as a denture base material in dentistry. It is a type of plastic that is durable, lightweight, and easily molded to fit the shape of the patient's mouth. Acrylic denture bases are also biocompatible and can be easily repaired or adjusted if necessary.

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19. Shoulder ធ្វើអោយៈ:

Explanation

not-available-via-ai

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20. Guiding plane are:

Explanation

Guiding planes are typically multiple and parallel. This means that there are usually more than one guiding plane, and they are usually aligned in a parallel manner. This arrangement helps in providing stability and guidance to objects or systems, ensuring smooth and controlled movement. Having multiple guiding planes also distributes the load and reduces the risk of failure or misalignment. The parallel alignment further enhances the effectiveness of the guiding planes by allowing consistent and uniform support.

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21. Guiding plane are:

Explanation

The guiding planes are usually both single and multiple. This means that there can be one guiding plane or there can be multiple guiding planes depending on the situation. However, it is important to note that the guiding planes are not always both single and multiple, as there may be cases where only one guiding plane is present or multiple guiding planes are present. Additionally, the guiding planes are usually parallel to each other.

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22. Angle at junction between major connector and denture base minor connector should be:

Explanation

The angle at the junction between the major connector and denture base minor connector should be less than or equal to 90 degrees. This is because a smaller angle helps in distributing the occlusal forces evenly and reduces the stress on the abutment teeth. A larger angle can result in increased stress concentration and potential damage to the supporting structures. Therefore, a smaller or equal to 90-degree angle is preferred for better stability and longevity of the denture.

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23. Marginal ridge for a rest seat should be reduced by at least:

Explanation

The marginal ridge for a rest seat should be reduced by at least 1.5mm. This reduction is necessary to ensure proper seating and stability of a restorative or prosthetic device. By reducing the marginal ridge, there is more space for the restorative material to be placed, allowing for a better fit and improved function of the device. Additionally, reducing the marginal ridge helps to prevent any interference with adjacent teeth or tissues.

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24. Bar Clasp វាមាន:

Explanation

The correct answer is "សោភ័ណភាព" (beautiful design). This answer is derived from the given options, where the other options describe negative aspects of the "Bar Clasp" such as not looking good, having a large size, or having a strange shape. Therefore, "សោភ័ណភាព" is the only option that suggests a positive attribute of the "Bar Clasp".

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25. RPD movements away from tissues may occur due to following except:

Explanation

RPD movements away from tissues may occur due to the pull of food, moving border tissues, and gravity. Mastication, on the other hand, involves the chewing and grinding of food, which can cause RPD movements towards the tissues rather than away from them. Therefore, mastication is not a cause for RPD movements away from tissues.

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26. Attachment between acrylic resin and metal base may be achieved by following:

Explanation

The given correct answer states that all options, including nail heads, retention loops, and diagonal spurs, are correct for achieving attachment between acrylic resin and a metal base. This means that all of these methods can be used effectively to achieve a strong bond between the acrylic resin and the metal base.

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27. Rotation in a distal extension denture base occurs because of differences in displaceability of:

Explanation

Rotation in a distal extension denture base occurs due to differences in displaceability of the periodontal ligament, supporting abutment teeth, and soft tissue of the residual ridge. When these structures are not properly corrected or balanced, rotation can occur, leading to instability and discomfort for the patient. Therefore, all of these factors need to be corrected in order to prevent rotation and ensure a stable and functional denture base.

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28. The Removable Partial Denture design should be finalized prior to:

Explanation

The removable partial denture design should be finalized prior to any fixed prosthodontics treatment and preparation of rest seats because the design of the removable partial denture will affect the placement and design of the fixed prosthodontics. It is important to have a complete understanding of the removable partial denture design before proceeding with any fixed prosthodontics treatment to ensure proper fit, function, and aesthetics. Additionally, the preparation of rest seats is also dependent on the design of the removable partial denture, so finalizing the design beforehand is necessary for accurate and effective treatment.

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29. Component of a clasp assembly is:

Explanation

The correct answer is "One or two rests, a retentive arm, a bracing or reciprocating element and one or two minor connectors." This answer accurately describes the components of a clasp assembly, which include one or two rests, a retentive arm, a bracing or reciprocating element, and one or two minor connectors.

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30. The total retention for a RPD is obtained from:

Explanation

The correct answer is "Fictional retention from guide surface/guide plate contacts". This means that the total retention for a removable partial denture (RPD) is achieved through the contact between the guide surface and guide plate. This contact creates a frictional force that helps to hold the denture in place. Other factors such as artificial teeth with major connector, artificial teeth with natural teeth, and occlusion of artificial teeth may contribute to the stability and function of the RPD, but the primary source of retention is the contact between the guide surface and guide plate.

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31. Function of denture bases :

Explanation

The function of denture bases is to support and retain denture teeth, distribute stress across a larger surface area, and improve esthetics. These functions ensure that the dentures fit securely in the mouth, distribute the forces of biting and chewing evenly, and enhance the appearance of the patient's smile.

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32. The basic movement of mandible:

Explanation

The mandible, or jawbone, is capable of three main movements: hinge, lateral, and translatory. The hinge movement refers to the opening and closing motion of the jaw, similar to a hinge on a door. Lateral movement refers to the side-to-side motion of the jaw, allowing for chewing and grinding food. Translatory movement involves the forward and backward sliding of the jaw, allowing for actions such as protrusion and retrusion. These three movements collectively enable the mandible to perform various functions, including speaking, eating, and facial expressions.

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33. Requirements of a Major connector:

Explanation

The major connector in a partial denture must have rigidity to provide stability and support to the prosthesis. It should not interfere with the surrounding tissues to prevent any discomfort or irritation. The major connector should also be designed in a way that minimizes food impaction, making it easier for the patient to clean the denture. Lastly, it should be unobtrusive, blending in with the natural dentition and not causing any aesthetic concerns. These requirements ensure that the major connector functions effectively, distributes functional loads to both teeth and mucosa, and allows the partial denture to act as one unit.

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34. Component of a clasp assembly are:

Explanation

The correct answer is "One or two rests, a retentive arm, a bracing or reciprocating element, one minor connectors, one major connector." This answer includes all the components mentioned in the question, such as rests, retentive arm, bracing or reciprocating element, minor connector, and major connector.

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35. Impression:

Explanation

The impression that is taken on the wax mold of the denture is called the "impression of the denture".

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36. ទិសដៅធ្មេញដាក់ដោះមួយផ្នែក រំលែកបន្ទុកលើផ្ទៃ:

Explanation

The given options are different parts of the tooth surface. "Occlusal" refers to the biting surface of the tooth, while "Vestibulaire" refers to the outer surface facing the lips or cheeks, "Linguale" refers to the inner surface facing the tongue, and "Mésisal" is not a recognized term in dentistry. Therefore, the correct answer is "Occlusal" as it represents a specific part of the tooth surface.

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37. លក្ខខណ្ឌដែលត្រូវធ្វើធ្មេញដាក់ដោះមួយផ្នែក ដែលធ្មេញផ្នែកខាងក្រោយគ្មានត្រូវ :

Explanation

The correct answer is "ពង្រីកបាតក្រោយ" (putting the lid on the back). This is because the lid is usually placed on the top of a container to cover it, not on the back.

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38. លក្ខខណ្ឌដែលត្រូវធ្វើធ្មេញដាក់ដោះមួយផ្នែក ត្រូវឱ្យបន្ទាត់កំណាំរត់តាម :

Explanation

The correct answer is "មុខ Occlusal". This is because the term "លក្ខខណ្ឌដែលត្រូវធ្វើធ្មេញដាក់ដោះមួយផ្នែក" refers to the part of a dental restoration that is placed on the biting surface of a tooth. The term "Occlusal" specifically refers to this area, making it the correct answer.

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39. When designing palatal connectors, relief should be given for:

Explanation

When designing palatal connectors, relief should be given for the palatal torus. The palatal torus is a bony prominence that may be present on the midline of the palate. Providing relief for the palatal torus ensures that the denture or appliance fits comfortably and securely in the mouth. Without relief, the torus could cause discomfort or pressure points for the patient. Therefore, it is important to consider the presence of a palatal torus and provide appropriate relief when designing palatal connectors.

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40. For the preparation of rest seat:

Explanation

The correct answer is "Marginal ridge should be reduced by 1 mm." This means that when preparing the rest seat, the marginal ridge should be reduced in size by 1 mm. This reduction helps create a proper fit for the rest seat, ensuring stability and support for the restoration or prosthesis.

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41. Which of the following chronic conditions may cause tooth abrasion?:

Explanation

Hard brush using and strong brushing can cause tooth abrasion because the excessive force and friction applied to the teeth can wear down the enamel over time. This can lead to the exposure of dentin, which is a softer layer of the tooth, making it more susceptible to damage and decay. It is important to use a soft-bristled toothbrush and practice gentle brushing techniques to prevent tooth abrasion.

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42. Direct Retainer:

Explanation

not-available-via-ai

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43. The Kennedy classification of this RPD is:

Explanation

The Kennedy classification of this RPD is Kennedy class III mod I because it involves bilateral edentulous areas located posterior to the remaining natural teeth, with a unilateral extension beyond the edentulous areas. This classification is appropriate when there are bilateral edentulous areas and an anterior extension on one side.

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44. If this RPD was fabricated exactly as drawn on the design cast, which component(s) would be inadequate?:

Explanation

The correct answer is that all of the components would be inadequate if the RPD was fabricated exactly as drawn on the design cast. This means that the minor connectors, lingual bar, and direct and indirect retainers would all not meet the required standards or specifications.

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45. The denture base acrylic resin minor connector on the patient's left side should correctly be located:

Explanation

The denture base acrylic resin minor connector should be located 2/3 to 1/2 the length of the residual ridge. This positioning ensures stability and support for the denture, as well as proper distribution of occlusal forces. Placing the minor connector on the retromolar pad or having a mesh acrylic retention area may not provide adequate support and stability. Additionally, placing the minor connector at 1/3 the length of the residual ridge may not provide enough coverage for proper function of the denture.

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46. Ponctic គឺតួស្ពានដែលធ្វើអំពីៈ:

Explanation

Plastic or metal crowns are materials used to make dental crowns. A dental crown is a cap that is placed over a damaged tooth to restore its shape, size, strength, and appearance. Plastic crowns, also known as resin crowns, are made of a composite material that can be color-matched to the natural teeth. Metal crowns, on the other hand, are typically made of gold or other metal alloys. Both types of crowns are durable and provide protection to the underlying tooth.

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47. Mold គឺជាគំរោងធ្វើពីៈ:

Explanation

not-available-via-ai

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48. A clasp assembly should:

Explanation

The given answer states that all of the provided statements are correct. This means that a clasp assembly should have a retentive arm with adequate length and taper for flexibility, it should have a retentive arm that terminates in an undercut, and it should have elements that, when considered together, provide 180 degree encirclement. These requirements ensure that the clasp assembly is effective in retaining a partial denture or other dental appliance securely in place.

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49. Reason (s) for selecting lingual plate major connectors is/are?:

Explanation

The reason for selecting lingual plate major connectors is that all the given statements are correct. Lingual plate major connectors are chosen when there is the presence of lingual tori, anticipated loss of one or more remaining teeth, and a high lingual frenum. These factors indicate the need for additional support and stability, which can be provided by lingual plate major connectors.

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50. ទិសដៅនៃធ្មេញដាក់នោះ មួយផ្នែកដើម្បីសំឡេងៈ:

Explanation

The answer "ច្បាស់ល្អ" (Good) is the correct answer because it is the most appropriate response to the statement "ទិសដៅនៃធ្មេញដាក់នោះ មួយផ្នែកដើម្បីសំឡេងៈ" (The purpose of putting the flour is to make it taste good). The other options do not directly address the purpose of putting the flour and are not the most suitable responses in this context.

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51. An ideal design framework of RPD should be:

Explanation

The ideal design framework for a Removable Partial Denture (RPD) should include all of the mentioned factors: determining the path of insertion, incorporating guiding planes, and locating retention areas. Each of these aspects is crucial for ensuring proper fit, stability, and functionality of the RPD. Determining the path of insertion helps in positioning the prosthesis correctly, guiding planes aid in directing the forces applied during function, and locating retention areas ensures proper retention and support. Therefore, all of these factors are essential in designing an ideal RPD framework.

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52. The function of the guide plate is to:

Explanation

The guide plate serves multiple functions in the context of a removable partial denture (RPD). Firstly, it helps establish a definitive path of insertion and dislodgement, ensuring that the RPD can be properly placed and removed from the mouth. Secondly, it stabilizes the RPD by controlling its horizontal position, preventing excessive movement or displacement. Lastly, the guide plate provides contact with the adjacent tooth, promoting stability and support for the RPD. Therefore, all of the given options are correct in describing the function of the guide plate.

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53. What would be the best denture base connectors when there is limited inter occlusal space (

Explanation

The best denture base connectors when there is limited interocclusal space would be the all metal base. This is because metal bases are thinner and require less space compared to other options like open lattice type or mesh type connectors. Additionally, metal bases provide better stability and support for the denture, making them suitable for cases with limited space. All plastic bases may not be ideal in such situations as they can be bulkier and may require more space.

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54. សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីអោយធ្មេញនៅសល់ៈ:

Explanation

not-available-via-ai

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55. លក្ខខ័ណ្ឌដែលត្រូវធ្វើធ្មេញដាក់ដោះមួយផ្នែកត្រូវប្រើៈ:

Explanation

Resine arcrylic is the correct answer because it is a type of material that is commonly used for filling teeth. It is a strong and durable material that can withstand the forces of chewing and biting. Resine arcrylic is also known for its aesthetic qualities, as it can be matched to the color of the natural teeth, making it blend in seamlessly. This material is often used for filling cavities and restoring the shape and function of the tooth.

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56. A removable partial denture may be:

Explanation

A removable partial denture may be supported by both natural teeth and the surrounding tissues. This means that the denture is designed to fit around existing teeth and also rest on the gums and underlying bone. This type of denture provides stability and support from both the teeth and the tissues, allowing for a more secure and comfortable fit.

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57. Minor Connector តភ្ជាប់ទៅៈ:

Explanation

The major connector is the correct answer because it is a component of a dental prosthesis that connects the various parts of the prosthesis together. It provides stability and support to the denture and helps distribute the forces during chewing. The major connector is typically made of a rigid material such as metal or acrylic and is designed to withstand the forces of mastication.

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58. Removable partial denture movements away from tissue may occur due to following except:

Explanation

Mastication is not a cause for removable partial denture movements away from tissue. Mastication refers to the process of chewing food, which involves the movement of the jaw and the denture. However, the other options listed such as the pull of food, moving border tissues, and gravity can all contribute to the movement of the denture away from the tissue.

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59. Rest អាចៈ:

Explanation

The correct answer is "អោយជាលិកាទន់នៅដដែល" which means "Allow the employee to work remotely". This answer suggests that the employee should be given the flexibility to work from a location of their choice, which could be their home or any other place outside the office. This allows the employee to have a better work-life balance and can also increase their productivity as they can work in a comfortable and familiar environment.

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60. Rest អាចសណ្តូកលើផ្ទៃ:

Explanation

The correct answer is "Occlusal." This term refers to the surface of a tooth that comes into contact with the opposing tooth during biting and chewing. It is the biting surface of the tooth and is typically flat or slightly rounded.

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61. Method to determine height of floor of the mouth is:

Explanation

The method to determine the height of the floor of the mouth involves using a periodontal probe and an individualized impression tray. The periodontal probe is used to measure the depth of the gingival sulcus, which can help determine the height of the floor of the mouth. The individualized impression tray is used to take an impression of the oral tissues, allowing for a more accurate measurement of the floor of the mouth.

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62. A removable partial denture may be :

Explanation

A removable partial denture may be supported by both the teeth and the surrounding tissues. This means that the denture is designed to rest on the remaining natural teeth and also utilize the support from the gums and underlying bone. This type of denture provides stability and retention by using a combination of tooth and tissue support.

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63. A continuous bar is otherwise known as:

Explanation

The correct answer is "kennedy bar and cingulum bar". A continuous bar refers to a type of dental prosthesis that connects two or more teeth together. It is also known as a kennedy bar and cingulum bar. This type of bar helps provide stability and support to the dental prosthesis, improving its functionality and longevity.

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64. Retentive arm ចូលទៅក្នុងៈ:

Explanation

not-available-via-ai

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65. Finishing line junction with major connector should have angle:

Explanation

The correct answer is "

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66. Bar Clasp ធ្វើអោយចំណីអាហារ:

Explanation

not-available-via-ai

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67. Incisal rests:

Explanation

Incisal rests are dental prosthetic components that are primarily used as axillary rests and indirect retainers. Axillary rests provide support and stability to removable partial dentures by resting on the buccal or lingual surfaces of adjacent teeth. They help distribute the forces exerted on the denture during chewing, preventing excessive stress on the abutment teeth. Indirect retainers, on the other hand, resist displacement of the denture base away from the supporting tissues by engaging the opposite side of the arch. Therefore, incisal rests can serve both functions, making them a versatile and commonly used component in removable partial dentures.

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68. Major Connector ធ្វើអោយៈ:

Explanation

The major connector is responsible for creating a smooth flow within the sentence. In this case, the major connector "មានសភាពសុខស្រួលនៅក្នុងមាត់" (creates a harmonious atmosphere within the group) helps to connect the different elements in the sentence and maintain coherence.

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69. Limitations to use of internal attachment are following except:

Explanation

The given answer is "Availability". This means that one of the limitations to the use of internal attachment is not related to its availability. In other words, the availability of internal attachment is not a limitation in its usage.

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70. Infrabulge clasp is advocated by:

Explanation

Devan is the advocate for the infrabulge clasp.

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71. The minimum thickness of resin that embeds the metal framework is:

Explanation

The minimum thickness of resin that embeds the metal framework is 1.5mm. This means that when applying resin to the metal framework, it should be at least 1.5mm thick in order to properly embed and cover the framework. Anything less than 1.5mm may not provide adequate coverage and protection for the metal framework.

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72. Best method to check occlusion intraorally to assess relining of RPD is:

Explanation

Green casting wax is the best method to check occlusion intraorally to assess relining of RPD. Green casting wax is a type of wax that is specifically designed for dental applications. It has excellent flow properties and can accurately replicate the occlusal surfaces of the teeth. By using green casting wax, the dentist can assess the fit and occlusion of the RPD after relining, ensuring that it is properly aligned with the natural teeth and providing optimal function for the patient.

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73. Physiologic Rest in a position of vertical dimension which can be recorded with:

Explanation

Posselt's envelope is a term used in dentistry to describe the range of motion of the mandible. It refers to the path traced by a point on the incisal edge of the mandibular central incisor as the mandible moves from maximum intercuspal position (MIP) to maximum opening. Therefore, Posselt's envelope can be used to record the physiologic rest position of the mandible in a vertical dimension. This makes it the correct answer in this case.

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74. An ideal clasp assembly should possess the following quality:

Explanation

An ideal clasp assembly should possess the quality of support, as it is essential for the clasp to provide stability and hold the components together. Without proper support, the clasp assembly may fail to function effectively and may not be able to securely hold the desired objects or materials in place. Support ensures that the clasp assembly can withstand external forces and maintain its position, preventing any unwanted movement or displacement.

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75. The total retention for a RPD is obtained from:

Explanation

The total retention for a Removable Partial Denture (RPD) is obtained from the denture style retention, which includes adhesion, cohesion, and interfacial surface tension. These factors contribute to the ability of the denture to adhere to the oral tissues and resist displacement during function. The major and minor connectors of the RPD also play a role in retention by providing stability and support to the denture. The other options listed do not accurately describe the sources of retention for an RPD.

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76. Acrylic resin bases is :

Explanation

The correct answer is "all are corrected". This means that acrylic resin bases possess all the mentioned qualities, including being the most common type, offering esthetics, and being easy to repair.

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77. Maxillary major connectors most common use is:

Explanation

The correct answer is anterior posterior palatal strap. Maxillary major connectors are commonly used to provide stability and support to a removable partial denture. The anterior posterior palatal strap is a type of major connector that extends from the anterior region to the posterior region of the palate, providing optimal support and retention for the denture. It helps distribute the forces evenly across the palate and prevents displacement of the denture during function.

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78. Anterior posterior palatal strap especially use is:

Explanation

The anterior posterior palatal strap is especially used for the torus palatal. This is because the torus palatal is a bony growth on the roof of the mouth that can cause discomfort and difficulty in wearing dental appliances. The strap provides maximum rigidity and minimum bulk, making it suitable for use in most cases involving the torus palatal.

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79. Full palatal plate:

Explanation

The full palatal plate is the connector of choice in cases where there is a need for maximum tissue support, such as in long distal extension cases where there are six or fewer anterior teeth remaining. It provides extensive coverage and support to the underlying tissues, helping to distribute the forces evenly and prevent tissue irritation or discomfort. In cases where there are more than six anterior teeth remaining, a different connector may be used as the full palatal plate may not be necessary for adequate support.

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80. Minor connector may be :

Explanation

not-available-via-ai

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81. Prosthodontics:

Explanation

The correct answer is "ផ្លាស់ប្តូរធ្មេញសិប្បនិម្មិត ត្រង់កន្លែងដែលបាត់". This answer states that prosthodontics involves the restoration of missing teeth. It implies that prosthodontics is a branch of dentistry that focuses on replacing missing teeth with artificial appliances such as dentures, bridges, or dental implants.

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82. A class I modification 0 of RPD normally are have many clasps?:

Explanation

A class I modification 0 of RPD normally has 2 clasps.

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83. Mandibular gridwork design of minor connectors:

Explanation

The mandibular gridwork design of minor connectors should extend 2/3 of the way from the abutment tooth to the retromolar pad. This design allows for maximum bulk of the acrylic resin, which prevents thin edges from fracturing. It is not necessary for the connectors to extend fully to the hamular notch.

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84. The correct answer the basic movements of the mandible:

Explanation

The correct answer is "Hinge, lateral and translatory movement." This answer accurately describes the basic movements of the mandible. The hinge movement refers to the opening and closing of the jaw, the lateral movement refers to side-to-side movements of the jaw, and the translatory movement refers to forward and backward movements of the jaw. These three movements are fundamental to the functioning of the mandible in activities such as chewing, speaking, and swallowing.

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85. When the survey line is height on the Mesial or Distal but low on the center, which one design clasp:

Explanation

When the survey line is high on the Mesial or Distal but low on the center, a Y clasp is designed. This is because the Y clasp allows for better retention and stability in cases where there is a height difference between the mesial/distal and center areas. The Y clasp can adapt to the irregularities of the teeth and provide effective support.

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86. Rest អាច :

Explanation

The answer "អោយជាលិកានៅដដែល" means "to let the employee work wherever they want". This suggests that the company allows its employees to choose their own work location, giving them the flexibility to work from different places instead of being confined to a specific office or workspace.

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87. Incisal rests:

Explanation

The statement "All are correct" means that all of the statements provided about incisal rests are true. This implies that incisal rests can have generally more positive vertical stops than cingulum rests, they may interfere with the opposing occlusion, and they should not be used on maxillary incisors.

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88. ទិសដៅនៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:

Explanation

The correct answer is "ប៉ះបំពេញភាពដើម" which means "to complete the beginning". This answer suggests that the purpose of placing the anchor is to ensure that the beginning of something is fully accomplished or fulfilled. It implies that the anchor serves as a support or foundation to ensure the success or completion of a task or goal.

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89. ទិសដៅនៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:

Explanation

The explanation for the correct answer "សុខភាពល្អ" (good health) is that when placing a pillow, it is important to prioritize good health. A good pillow supports proper alignment of the head, neck, and spine, which can help prevent neck and back pain. It also promotes better sleep quality, as a comfortable pillow can help reduce tossing and turning during the night. Additionally, a good pillow can provide adequate support for the head, which can help prevent headaches and promote overall well-being.

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90. សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:

Explanation

The correct answer is "ដាក់ដោះសំអាត" (place it upside down). This answer is correct because it is a direct translation of the given phrase "ដាក់ដោះសំអាត" which means to place the object upside down. The other options do not accurately translate the given phrase.

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91. Following condition(s) is/are also called as distal extension partial denture:

Explanation

Kennedy's class I is also known as a distal extension partial denture because it involves the replacement of missing teeth in one arch where there are natural teeth present only on one side of the arch (distal extension). This type of partial denture is commonly used when there are no teeth present on the other side of the arch to support the denture. It is important to note that Kennedy's class I is different from Kennedy's class IV, Applegate class VI, and Applegate class V, which have their own specific characteristics and indications.

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92. Floor of the rest seat should be:

Explanation

The floor of the rest seat should be spoon-shaped. This means that it should have a concave shape, with a slight dip in the middle. This design helps to provide better support and stability for the person sitting on the rest seat. It helps to distribute the weight evenly and prevents the person from sliding off the seat. The spoon-shaped floor also allows for better positioning of the hips and thighs, promoting better posture and comfort.

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93. Approach arm វាចូលដល់ Undercut តាមរយៈ :

Explanation

not-available-via-ai

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94. A minor connector located at embrasure should be:

Explanation

A minor connector located at the embrasure should be thickest toward the lingual surface. This is because the lingual surface of the teeth is generally more stable and less prone to movement compared to the buccal surface. Therefore, having a thicker minor connector on the lingual side provides more strength and support to the prosthesis, ensuring stability and longevity.

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95. When a minor connector contacts tooth surface on either side of embrasure, it should:

Explanation

The correct answer is "All of the above are true." When a minor connector contacts the tooth surface on either side of an embrasure, it should abruptly end at the tooth, be sharply angled, and not have space between it and the tooth. This ensures proper stability and support for the dental prosthesis.

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96. Rest នៅមុខទំពាររាងវាៈ:

Explanation

The correct answer is "Ovoid". Ovoid refers to a shape that is egg-like or oval in nature. It is rounded and elongated, resembling the shape of an egg. In this question, the other options such as square, tapering, and triangular do not accurately describe the shape mentioned.

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97. Major Connector ជាស្ពានៈ:

Explanation

The correct answer is "សំខាន់" because it is the major connector in the given options. The other options are "មិនសូវមាំ" which means "not important", "បន្ទាប់បន្សំ" which means "next", and "មិនសូវសំខាន់" which means "not significant". However, only "សំខាន់" is the major connector that fits the given context.

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98. La relation centrée les condyles នៅក្នុងៈ:

Explanation

The correct answer is "Cavité Glénoide". This suggests that the relation is centered on the cavité glénoide. This implies that the condyles are positioned within or in relation to the cavité glénoide.

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99. Classification of lever system is based on location of:

Explanation

The classification of a lever system is based on the location of the resistance, the direction of effort, and the fulcrum line. In this case, all of these factors are correctly accounted for. This means that the resistance, direction of effort, and fulcrum line are all accurately identified and considered in the classification of the lever system.

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100. All of the following clasps are infrabulge clasps except:

Explanation

The Aker clasp is not an infrabulge clasp because it is designed to engage the undercut on the buccal surface of a tooth, rather than below the bulge of the tooth. Infrabulge clasps, on the other hand, engage the undercut below the bulge of the tooth to provide stability and retention for removable partial dentures. Therefore, the Aker clasp does not belong to the category of infrabulge clasps.

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101. The open lattice type on a maxillary class I Removable Partial Denture:

Explanation

An open lattice type on a maxillary class I Removable Partial Denture does not cover the tuberosity. The tuberosity refers to the bony prominence on the posterior part of the maxilla. By not covering the tuberosity, the denture allows for a more comfortable fit and better retention. This design also helps to avoid any pressure or discomfort on the tuberosity area during chewing or speaking.

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102. Height of contour determine is a:

Explanation

The height of contour determines the infrabulge and suprabulge of a dental prosthesis. Infrabulge refers to the area below the height of contour where the prosthesis is narrower, while suprabulge refers to the area above the height of contour where the prosthesis is wider. These contours are important for proper placement and stability of the prosthesis in the oral cavity. The path of insertion, placement of clasp, and proximal plate are not directly related to the height of contour.

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103. What is the most common use material for casting framework of RPD:

Explanation

Chrome cobalt is the most common material used for casting the framework of removable partial dentures (RPD). This material is preferred due to its excellent strength, durability, and biocompatibility. It provides a strong and stable framework that can withstand the forces of mastication and maintain its shape over time. Additionally, chrome cobalt has a high resistance to corrosion and is relatively lightweight, making it a suitable choice for RPD frameworks. Platinum, titanium, and nickel chrome are not as commonly used for this purpose.

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104. The gridwork minor connector on a maxillary class I removable partial denture:

Explanation

The gridwork minor connector on a maxillary class I removable partial denture does not cover the tuberosity. The tuberosity is the rounded prominence on the posterior aspect of the maxilla, and covering it with the minor connector would restrict its natural movement during function. Therefore, the minor connector is designed to avoid covering the tuberosity, allowing for proper movement and function of the denture.

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105. Guide plates for anterior teeth:

Explanation

Guide plates for anterior teeth should be kept to the lingual and be thinned on the labial for esthetics. This means that the guide plates, which are used to help position and guide the teeth during restorative procedures, should be placed on the inner (lingual) side of the teeth. Thinning them on the labial side helps to ensure that they do not interfere with the appearance or aesthetics of the teeth. This approach allows for proper function and alignment of the teeth while maintaining a natural and pleasing appearance.

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106. The total retention for a RPD is obtained from:

Explanation

The total retention for a Removable Partial Denture (RPD) is obtained from the mechanical retention provided by the clasps, which are the direct retainers. Clasps are designed to engage the abutment teeth and provide stability and retention for the RPD. The other factors mentioned, such as the major connector, minor connectors, and grid work, may contribute to the overall stability and support of the RPD, but they do not directly provide mechanical retention.

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107. Distal extension RPD is :

Explanation

A distal extension RPD refers to a removable partial denture that is supported by both the surrounding soft tissues and the remaining natural teeth. This means that the denture rests on the gums and is also attached to the adjacent teeth for stability. It is considered both tissue and tooth borne because it relies on support from both sources to function properly.

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108. The most important cause of failure of patients wear RPD is due to:

Explanation

Improper preliminary rehabilitative restorative procedures can be the most important cause of failure of patients wearing removable partial dentures (RPD). This suggests that the initial steps taken in the rehabilitation and restoration process, such as the assessment of the patient's oral condition, treatment planning, and preparation of the mouth for RPD placement, may not have been carried out correctly. These procedures are crucial for ensuring the success and longevity of RPDs. If they are not performed properly, it can lead to discomfort, instability, and other complications for the patient, ultimately resulting in failure of the RPD.

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109. Factors influencing the support of a distal extension denture base by the residual ridge is :

Explanation

The support of a distal extension denture base by the residual ridge is influenced by various factors. These factors include the quality of the residual ridge, which refers to the condition and shape of the underlying bone and soft tissues. Additionally, the type and accuracy of the impression registration play a crucial role in ensuring proper fit and support of the denture base. Lastly, the occlusal load applied, or the forces exerted during chewing and biting, can also affect the support provided by the denture base. Therefore, all of these factors need to be considered and corrected to ensure optimal support of the denture base by the residual ridge.

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110. A combination clasp assembly generally has:

Explanation

A combination clasp assembly generally has a bracing arm, a retentive arm, and rests. The bracing arm provides support and stability to the clasp assembly, while the retentive arm is responsible for retaining the clasp in place. Rests are used to distribute forces evenly and prevent damage to the abutment tooth. This combination of components allows for a secure and functional clasp assembly.

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111. The external finish line on a maxillary class 1 RPD originates from the lingual of the guide plane of the terminal abutment and ends:

Explanation

The external finish line on a maxillary class 1 RPD originates from the lingual of the guide plane of the terminal abutment and ends at the hamular notch. The hamular notch is a bony landmark located at the posterior border of the maxillary tuberosity. This is an important point of reference for determining the extent of the prosthesis and ensuring proper fit and function. By ending the external finish line at the hamular notch, the prosthesis can be designed to provide adequate support and stability while avoiding interference with the surrounding anatomical structures.

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112. The Gridwork of Minor Connector on a maxillary class 1 RPD:

Explanation

The correct answer is "does not cover the tuberosity." In a maxillary class 1 removable partial denture (RPD), the gridwork of the minor connector is designed to connect the major connector to the rest of the RPD framework. It is important for the minor connector to be properly designed to avoid covering the tuberosity, which is the rounded prominence on the posterior aspect of the maxilla. By not covering the tuberosity, the RPD can provide better stability and avoid any potential discomfort or irritation to the patient.

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113. A jaw which is moving in a ”left or right” motion would be called what type of movement:

Explanation

The correct answer is "lateral." In this context, "lateral" refers to a side-to-side movement, which is the characteristic motion described in the question. The other options do not accurately describe the type of movement specified.

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114. Edentulous Space គឺកន្លែងធ្មេញដែល :

Explanation

The correct answer is "យកចេញ" which means "to remove" in English. The other options provided in the question are "នៅសល់" which means "to remain", "កំពុងប្រើប្រាស់" which means "to be in use", and "ដុះខុសជួរ" which means "to replace". These options do not match the meaning of "Edentulous Space" which refers to a space in the mouth where teeth are missing. Therefore, the correct answer is "យកចេញ" which accurately describes the action of removing teeth in this context.

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115. Indirect Retainer គឺជាផ្នែកនៃក្រាសធ្មេញទប់ត្រង់កន្លែង :

Explanation

The correct answer is "ពង្រីកផ្ទៃក្រោយ" which means "posterior surface". In dentistry, an indirect retainer is a component of a removable partial denture that helps to stabilize and support the denture by engaging the posterior surface of the abutment teeth. The posterior surface refers to the back or rear surface of the teeth.

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116. Cast:

Explanation

The answer suggests that the cast is made up of four different types of molds: one made from clay, one made from wood, one made from metal, and one made from glass.

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117. សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:

Explanation

This answer states that we should not let the remaining water be 2 or 3 liters.

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118. ចំណាត់ថ្នាក់ទី 4 នៃចន្លោះធ្មេញ គឺប្រឡោះធ្មេញៈ:

Explanation

The correct answer is "ក្រោយទាំងសងខាង" (behind the mountain). This answer is correct because it correctly identifies the location of the ethnic minority in question, stating that they are located behind the mountain.

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119. Denture bases of removable partial denture offer:

Explanation

Denture bases of removable partial denture offer secondary retention. Secondary retention refers to the ability of the denture base to resist displacement during functional movements of the oral cavity. It is achieved through factors such as proper fit, design, and the use of clasps or attachments. Primary retention refers to the initial stability of the denture achieved through factors like suction or adhesion, which are not applicable in removable partial dentures. Mechanical retention refers to the use of clasps or attachments to provide stability but does not apply to the denture bases themselves. Therefore, the correct answer is secondary retention.

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120. ទំពក់ Circlet:

Explanation

The correct answer is "ងាយស្រួលជួសជុល" which means "easy to wear". This answer is supported by the word "Circlet" in the question, which refers to a small ornamental crown or headband that is worn around the head. Therefore, it can be inferred that a circlet is something that is meant to be easily worn on the head, making the answer "easy to wear" the most appropriate.

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121. ទំពក់ Circlet:

Explanation

The given answer states that the Circlet is not as good as the Bar Clasp in terms of fastening. This implies that the Circlet does not provide a secure and reliable fastening like the Bar Clasp does.

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122. Back Action Clasp:

Explanation

The correct answer is "ងាយខូចទ្រង់ទ្រាយ" which translates to "Easy to open and close". This is evident from the given description of "Back Action Clasp" which mentions that it is easy to open and close. The words "ងាយខូច" mean "easy to" and "ទ្រង់ទ្រាយ" means "open and close". Therefore, the answer accurately describes the given information.

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123. Rest Plate System វាមានកន្លែងទប់នៅចំណុចៈ:

Explanation

The correct answer is "Rest Plate System has resting place at the crest of the alveolar ridge and small vestibular and lingual flanges." This means that the rest plate system is designed to have a resting place at the crest of the alveolar ridge, which is the bony ridge that supports the teeth. Additionally, it has small flanges on the vestibular (outer) and lingual (inner) sides, as well as a small plate to provide support.

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124. Floor of the cingulum rest seats is placed towards:

Explanation

The correct answer is Cervical end. The floor of the cingulum rest seats is placed towards the cervical end because it provides stability and support to the denture. Placing the rest seats towards the cervical end helps to distribute the forces evenly and prevents the denture from dislodging during mastication and speech. Additionally, this placement allows for better retention and stability of the denture, ensuring a comfortable fit for the patient.

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125. កន្ទុយរបស់ Rest រាងក្រអូបលយទៅៈ:

Explanation

The correct answer is "Face occlusale." The term "face occlusale" refers to the biting surface of a tooth. It is the part of the tooth that comes into contact with the opposing tooth during the act of biting or chewing. This surface is typically flat or slightly curved and is important for the proper function of the tooth in the chewing process.

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126. Rest នៅផ្នែក Cingulum គេប្រើៈ:

Explanation

The correct answer is "នៅធ្មេញចង្កូមលើ" because it is the only option that is grammatically correct and makes sense in the given context. The phrase "នៅធ្មេញចង្កូមលើ" means "in the middle, above" which fits with the description of the location mentioned in the question. The other options do not fit the context or are not grammatically correct.

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127. Major Connector ភ្ជាប់ពីៈ:

Explanation

The major connector is responsible for connecting different components or parts together, while the minor connector is a smaller connector that assists in joining these components. In this context, the major connector is mentioned as "Major Connector" and the minor connector is indicated as "Minor Connector". The answer "Minor Connector" is correct because it is the only option that matches the given information about the connectors.

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128. In the following philosophy of RPI system, the functional force is distributed evenly between tooth and tissue:

Explanation

The correct answer suggests that in the philosophy of the RPI system, the functional force is distributed evenly between the tooth and the tissue when the proximal plate extends up to the junction of the middle and gingival third. This means that the contact area between the proximal plate and the guiding plane is maximized, allowing for better stability and distribution of forces during function.

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129. Distance of indirect retainer from fulcrum line is affected by following, except:

Explanation

The distance of the indirect retainer from the fulcrum line is affected by the location of the principal abutment, the length of the distal extension base, and the location of the fulcrum line. However, the rigidity of the indirect retainer does not affect this distance. The rigidity of the indirect retainer refers to its ability to resist movement or displacement. While rigidity is important for the stability and retention of the prosthesis, it does not directly impact the distance of the indirect retainer from the fulcrum line.

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130. Chemical bonding of resin to metal involves following, except:

Explanation

The correct answer is "Loops and Mesh". This is because loops and mesh are not involved in the chemical bonding of resin to metal. The other options, such as silica coating, resin bonding agent application, and a thin layer of acrylic resin over the metal, are all methods commonly used in the process of bonding resin to metal.

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131. Designing of a prosthesis requires following consideration:

Explanation

The correct answer implies that when designing a prosthesis, all aspects need to be considered and corrected. This includes ensuring that the prosthesis is biologically compatible with the user's body, mechanically functional to perform the required tasks, and aesthetically pleasing to blend in with the user's appearance. All these considerations are crucial to create a well-designed prosthesis that meets the user's needs and enhances their quality of life.

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132. Guiding planes which are not in the same parallel plane horizontally:

Explanation

Guiding planes that are not in the same parallel plane horizontally help to enhance cross-arch resistance to horizontal rotation. This means that the presence of non-parallel guiding planes helps to stabilize the arches and prevent them from rotating horizontally. By creating a non-parallel relationship between the guiding planes, the resistance to horizontal rotation is increased, providing better stability and support for the arches. This can be beneficial in dental procedures such as denture fabrication, where stability and resistance to movement are important factors.

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133. The minor connector that contacts the guiding plane:

Explanation

The minor connector that contacts the guiding plane has the same contour as the guiding plane, meaning that it follows the same shape and design. Additionally, it is thicker lingually than buccally, indicating that it is thicker on the inside of the mouth compared to the outside. This combination allows for proper contact and stability between the connector and the guiding plane.

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134. Clasp retention is:

Explanation

Clasp retention refers to the ability of a clasp to hold a denture or partial denture in place. It is achieved by two factors: being perpendicular to the path of placement and having resistance to metal deformation. The perpendicularity ensures that the clasp engages the tooth from a direction that provides stability, while resistance to deformation ensures that the clasp maintains its shape and grip even under forces exerted during mastication. Both these factors are crucial for effective clasp retention.

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135. A removable partial denture may be:

Explanation

A removable partial denture may be supported by both teeth and tissues. This means that the denture can rely on both the remaining natural teeth in the mouth as well as the surrounding gum and bone tissues for stability and support. This type of denture is commonly used when there are some natural teeth remaining in the mouth, but not enough to support a full denture. The remaining teeth provide additional stability and retention for the denture, while the tissues help distribute the forces of chewing and provide additional support.

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136. A tissue undercut may preclude the selection of:

Explanation

A tissue undercut refers to a situation where there is a depression or concavity in the tissue around a tooth. This can make it difficult to select an infrabulge clasp, which is a type of clasp that rests below the height of contour of the tooth. The undercut may prevent the clasp from engaging properly with the tooth, compromising its stability and effectiveness. Therefore, an infrabulge clasp may not be a suitable choice in cases where there is a tissue undercut.

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137. The external finish line on a maxillary class I RPD originates from the lingual of the guide plane of the terminal abutment and ends:

Explanation

The external finish line on a maxillary class I RPD ends at the hamular notch. The hamular notch is a bony prominence located at the posterior border of the hard palate. It serves as a landmark for determining the extent of the prosthesis and helps in achieving proper retention and stability. Placing the finish line at the hamular notch ensures that the prosthesis is well-fitted and does not impinge on the soft tissues in the posterior region of the mouth.

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138. Rigid metal retention is associated with:

Explanation

Rigid metal retention is associated with all of the options given. A dual path of insertion is necessary for RPDs with rigid metal retention as it allows for proper placement and removal of the prosthesis. A class IV RPD refers to a removable partial denture that replaces missing teeth in the anterior region of the mouth, and rigid metal retention is commonly used in such cases. Additionally, excellent esthetics are required when using rigid metal retention to ensure the prosthesis blends in seamlessly with the natural teeth. Therefore, all of the given options are correct.

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139. The internal and external finish line is:

Explanation

The correct answer is that the internal and external finish line is normally offset from each other to avoid weakness in the framework. This means that the finishing lines on the inside and outside of a structure are intentionally placed at different positions to ensure structural integrity and prevent any potential weaknesses. By offsetting the finish lines, the load distribution is optimized and the framework is strengthened.

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140. An ideal clasp assembly should possess the following quality:

Explanation

The ideal clasp assembly should possess a 180 degree encirclement. This means that the clasp should fully encircle the object or material it is holding, providing a secure and stable grip. A 180 degree encirclement ensures that the clasp is able to hold the object firmly in place without the risk of slipping or coming loose. It provides maximum support and stability, making it the most suitable choice for a clasp assembly.

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141. If a third molar is absent and not to be replaced :

Explanation

The absence of a third molar is not considered in the classification of partial dentures. This means that when determining the type of partial denture to be used, the absence of a third molar does not play a role. Other factors such as the number and location of remaining teeth, the condition of the surrounding tissues, and the patient's specific needs are considered instead.

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142. Reciprocation between bracing and retentive components requires:

Explanation

The correct answer is "Correct timing of contact during seating and removal of RPD." This means that in order for the reciprocation between bracing and retentive components to work effectively, the contact between these components should be timed correctly during the seating of the removable partial denture (RPD), and the RPD should be properly removed when necessary. This ensures that the bracing and retentive components function together harmoniously to provide stability and retention for the RPD.

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143. Occlusal rest preparation should be:

Explanation

The correct answer is "spoon shaped, at least 1/3 the bucco lingual width of the occlusal surface, at least 1mm deep." This is because occlusal rest preparation should have a shape that resembles a spoon, with a depth of at least 1mm. The preparation should also be at least 1/3 the bucco lingual width of the occlusal surface to provide sufficient support for the prosthesis. The option with "1m deep" is incorrect as it is an unrealistic depth for occlusal rest preparation.

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144. The junction of mandibular minor connector with major connector is :

Explanation

The correct answer is butt joint. In dentistry, a butt joint refers to the junction where two components meet without any overlap or interlocking. In this case, the mandibular minor connector connects to the major connector without any additional material or joint formation. It is a simple, direct connection between the two components.

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145. What are the indications for a linguo plate as a major connector for a mandibular RPD?:

Explanation

A linguo plate as a major connector for a mandibular RPD is indicated when the patient has a high floor of the mouth, a high lingual frenum, and lingual tori. These conditions can make it difficult to achieve adequate retention and stability with other types of major connectors. The linguo plate can help distribute the forces evenly and provide better support for the RPD.

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146. The superior border of lingual bar should lie :

Explanation

The superior border of the lingual bar should be positioned at least 4mm below the gingival margin. This placement ensures that the lingual bar is securely anchored and provides adequate support for the denture. It also helps to prevent irritation or injury to the gingival tissues.

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147. Physiologic Rest is a position of vertical dimension which can be recorded with:

Explanation

Posselt's envelope is a recording technique used to measure the vertical dimension of occlusion. It involves tracing the path of the mandible as it moves from maximum opening to maximum closing. This recording provides information about the physiologic rest position, which is the position where the mandible naturally rests when the muscles are in a state of equilibrium. Therefore, Posselt's envelope is a suitable method for recording the physiologic rest position.

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148. Atmosphéric Pressure:

Explanation

The correct answer is "សម្ពាធក្រៅធំជាងសម្ពាធក្នុង" which means "The atmospheric pressure is greater than the pressure inside." This answer is based on the information provided in the question, which states that the atmospheric pressure is larger than the pressure inside.

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149. During biting a maxillary class I RPD with rotate around a line determined by the rigid metal above the survey line and closed to the extension areas This line is called:

Explanation

The correct answer is Axis of rotation. During biting, a maxillary class I RPD (removable partial denture) will rotate around a line that is determined by the rigid metal above the survey line and close to the extension areas. This line is known as the axis of rotation.

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150. សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បី :

Explanation

The given answer states that the purpose of putting a plant at the beginning of a paragraph is to help transition smoothly from one idea to another. By using a plant, the writer can introduce a new topic or point of view, providing a fresh perspective for the reader. This technique helps to maintain the flow of the writing and prevent abrupt shifts in subject matter.

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151. សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បី :

Explanation

Using a brush to comb is the most effective way to detangle hair.

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152. Considering the design of an RPD for the mandibular arch:

Explanation

A dual path of insertion should be considered in the design of an RPD for the mandibular arch because it allows for easier insertion and removal of the prosthesis. This is especially important in the mandibular arch due to the limited space and anatomical structures present. A dual path of insertion provides flexibility and reduces the risk of damaging the remaining natural teeth or oral tissues during insertion and removal of the RPD. It also improves patient comfort and compliance with wearing the prosthesis.

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153. Fixed Prosthodontics:

Explanation

The correct answer is "ការដាក់ធ្មេញសិប្បនិម្មិតដែលមិនអាចដោះបាន" which means "The placement of a fixed prosthesis that cannot be removed." This answer implies that once the prosthesis is placed, it cannot be easily removed or taken out.

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154. The superior border of this major connector:

Explanation

The superior border of the major connector is not acceptably adapted to the teeth. This means that the way the major connector is designed or positioned does not properly fit or conform to the shape and contours of the teeth. This could lead to discomfort, instability, or other issues with the dental prosthesis.

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155. In this Class I mandibular removable partial denture, rests preparations on the cingulum of (#33+):

Explanation

The cingulum rests preparations on the mandibular removable partial denture would provide indirect retention if covered by the major connector. This means that the rests would help to stabilize and retain the denture in place when it is being used for chewing and speaking. The major connector, which is a part of the denture that connects different components together, would cover the cingulum rests and enhance their effectiveness in providing retention.

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156. A lingual plate major connector may be selected be cause:

Explanation

The lingual plate major connector may be selected because all of the given options are correct. This means that regardless of the specific reason for choosing the lingual plate major connector, whether it is because the mandibular incisors are tilted lingually, there are mandibular tori present, or there is a high lingual frenum, the lingual plate major connector can still be an appropriate choice.

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157. In which of the following mandibular positions are the teeth in contact?:

Explanation

All of the given options are correct because in each of these mandibular positions, the teeth are in contact. In centric relation and centric occlusion, the teeth are in their ideal position and fully interdigitated. In edge to edge incisor contact, the anterior teeth meet edge to edge, creating contact. In maximum mandibular protrusion, the lower jaw is extended forward, causing the teeth to come into contact. Therefore, in all of these positions, the teeth are in contact.

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158. Function of the teeth is /are:

Explanation

The function of the teeth includes mastication, which is the process of chewing and grinding food to aid in digestion. Teeth also play a role in phonation, helping to produce speech sounds by interacting with the tongue and lips. Additionally, teeth contribute to aesthetics, as they are visible when a person smiles and can impact the overall appearance of the face. Therefore, all of the given options are correct in describing the functions of teeth.

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159. លក្ខខ័ណ្ឌដែលត្រូវធ្វើធ្មេញដាក់ដោះមួយផ្នែកដែលកន្លែងអត់ធ្មេញមានៈ:

Explanation

The correct answer is "ប្រឡោះធំទូលាយ" which means "large sink". This answer is correct because it is the only option that describes a condition where there is no space for water to flow. The other options, "ប្រហោងតូច" (small drain), "ប្រហោងចង្អៀត" (narrow drain), and "ប្រឡោះដែលគ្មានធ្មេញតែមួយកន្លែង" (sink with only one place), do not convey the idea of a blocked or clogged drain.

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160. Rest ត្រូវតែៈ:

Explanation

not-available-via-ai

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161. When designing palatal major connectors ,relief should for:

Explanation

When designing palatal major connectors, relief should be provided for the palatal torus. Palatal torus is a bony protuberance on the midline of the hard palate, which can cause discomfort and pressure on the denture if not properly accommodated. Providing relief in the palatal major connector allows for a better fit and improved comfort for the patient wearing the denture.

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162. The superior border of linqual bar should be:

Explanation

The superior border of the lingual bar should be at least 4 mm below the gingival margin. This is important to ensure proper fit and stability of the lingual bar. Placing it deep in the lingual sulcus or at the cingulum of anterior teeth would not provide the necessary support and stability. Placing it at least 7 mm below the gingival margin would be excessive and may cause discomfort to the patient. Therefore, the best option is to have the superior border of the lingual bar at least 4 mm below the gingival margin.

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163. What are the functions of an indirect retainer:

Explanation

The function of an indirect retainer is to prevent vertical dislodgement of the distal extension base of a removable partial denture. It helps to stabilize the denture by providing resistance against forces that could cause it to lift or dislodge vertically. This is important for maintaining the stability and functionality of the denture during chewing and speaking.

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164. Stability is mainly against:

Explanation

Stability in the context of this question refers to the ability of a prosthesis to resist displacement or movement. Horizontal forces and functional forces are the main factors that can affect the stability of a prosthesis. Horizontal forces, such as those exerted during walking or other activities, can cause the prosthesis to shift or move. Functional forces, which include the forces exerted during chewing or biting, can also impact the stability of the prosthesis. Therefore, stability is mainly against horizontal forces and functional forces.

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165. Indirect retainer:

Explanation

The indirect retainer in a removable partial denture (RPD) serves multiple functions. It assists the direct retainer by providing stability and support to the RPD. It also resists lever action, which is the tendency of the RPD to rotate around its fulcrum point. Additionally, the indirect retainer prevents displacement of the RPD by maintaining its position in the oral cavity. Therefore, the correct answer "maintains all of the above" accurately summarizes the various roles of the indirect retainer in a RPD.

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166. In removable partial denture, health of gingival tissue is ensured by:

Explanation

In removable partial dentures, the health of the gingival tissue is ensured by keeping a minimum distance of 6 mm for the major connector and a minimum distance of 4 mm for the major connector. This allows for adequate space for the gingival tissue to be healthy and not irritated or damaged by the denture. By maintaining these distances, the gingival tissue can remain healthy and free from inflammation or trauma caused by the denture.

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167. Small window in relief wax distal to terminal abutment in distal extension denture base removable partial denture acts as:

Explanation

The small window in relief wax distal to the terminal abutment in a distal extension denture base removable partial denture acts as a finishing index tissue stop. This means that it serves as a guide or reference point for the dentist during the finishing process of the denture. It helps ensure that the denture fits properly and is comfortable for the patient.

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168. Ring Clasp:

Explanation

not-available-via-ai

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169. Rest នៅមុខខាំកាត់ incisal :

Explanation

not-available-via-ai

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170. Parts that offer support for RPD are following:

Explanation

Rest and denture base are the parts that offer support for RPD (Removable Partial Denture). The rest is a component of the RPD framework that rests on the tooth or teeth to provide stability and support. The denture base is the part of the RPD that holds the artificial teeth and connects to the remaining natural teeth or implants. Together, the rest and denture base work to distribute the forces of chewing and biting evenly, providing support and stability for the RPD.

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171. សាច់ដុំ Elevation or closure of the mouth:

Explanation

The temporal muscle is responsible for the elevation or closure of the mouth. It is a large muscle located on the side of the head and is one of the primary muscles involved in chewing and biting. When the temporal muscle contracts, it pulls the lower jaw up, closing the mouth. This muscle is innervated by the mandibular branch of the trigeminal nerve and is essential for proper functioning of the jaw and mouth.

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172. Plan d’ occlusion parallèle ជាមួយៈ:

Explanation

The correct answer is "Plan de camper". The other options, "Plan frontal", "Plan sagittal médian", and "Plan de francfort", are not related to occlusion. Plan de camper refers to a parallel occlusion, which means that the upper and lower teeth come into contact evenly when biting down. This is an important concept in dentistry as it ensures proper alignment and functionality of the teeth.

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173. Attachment between porcelain tooth and denture base resin is:

Explanation

The attachment between a porcelain tooth and a denture base resin is mechanical. This means that the bond between the two materials is primarily based on physical interlocking or mechanical retention rather than any chemical reaction or adhesion. This type of attachment relies on the shape and surface texture of the materials to create a strong bond.

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174. In a class III situation, the retentive tip should be:

Explanation

In a class III situation, the retentive tip should be active only during placement and removal and passive normally. This means that the retentive tip should provide active retention and support during the insertion and removal of the prosthesis, but should remain passive during normal function. This ensures that the prosthesis is securely held in place during placement and removal, but allows for comfortable and functional movement during regular use.

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175. Following condition(s) is/are also called as distal extension partial denture:

Explanation

Kennedy class I is also known as a distal extension partial denture. This type of partial denture is used when there is a unilateral edentulous area located at the posterior end of the arch, with natural teeth remaining anteriorly. The denture is designed to extend distally from the natural teeth to replace the missing teeth in the posterior region.

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176. Retentive tip of a clasp should usually be designed to be placed in:

Explanation

The retentive tip of a clasp should usually be designed to be placed in the gingival 1/3 of the tooth. This is because the gingival 1/3 is the area of the tooth that is most stable and resistant to movement. Placing the retentive tip in this area ensures that the clasp will have optimal retention and stability, allowing it to effectively hold the prosthesis in place. Placing the retentive tip in the occlusal 1/3 or occlusal 2/3 may not provide sufficient retention and could result in the prosthesis becoming loose or dislodged.

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177. Metal bases use :

Explanation

Metal bases are used in cases where there is a small edentulous space and no room for grid work. Grid work is a type of framework used in dentures to provide support and stability. However, in cases where the edentulous space is small, there may not be enough room to accommodate the grid work. In such situations, metal bases are used as an alternative to provide support and stability to the denture. These metal bases are custom-made to fit the specific edentulous space and provide a secure foundation for the denture.

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178. For obtaining functional impression for RPD :

Explanation

The correct answer is that all aspects are corrected for obtaining a functional impression for RPD. This means that both the teeth and ridge are recorded in both anatomical and functional form. This ensures that the impression accurately captures the shape and function of the teeth and ridge, allowing for the creation of a well-fitting and functional removable partial denture.

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179. Which of the following maxillary major connectors possesses the least strength and rigidity?:

Explanation

The horse-shoe major connector possesses the least strength and rigidity among the options given. This is because the horse-shoe design only covers a small portion of the palate, leaving the rest unsupported. This lack of coverage and support reduces its strength and rigidity compared to the other options, such as the anterior posterior palatal strap, palatal plate, and modified palatal strap, which provide more extensive coverage and support.

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180. The superior border of mandibular lingual bar major connector should be:

Explanation

The superior border of the mandibular lingual bar major connector should be at least 3mm from the tooth/tissue junction. This is important to ensure proper fit and function of the major connector. Placing it at least 3mm from the tooth/tissue junction allows for adequate clearance and prevents irritation or damage to the surrounding tissues. It also helps to maintain good oral hygiene by facilitating easy cleaning of the area.

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181. A mandibular movement which is> would be best classified as a…………movement:

Explanation

A mandibular movement that is classified as a hinge movement refers to the opening and closing motion of the lower jaw around a fixed axis, similar to a door hinge. This movement primarily occurs in the temporomandibular joint (TMJ) and allows for basic functions such as chewing and speaking. It is characterized by a simple rotational motion without any lateral or sliding components.

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182. Protrusive or Retrusive movements can also be called………………movement:

Explanation

Protrusive or retrusive movements refer to the forward or backward sliding of the mandible (lower jaw) in relation to the maxilla (upper jaw). Therefore, the correct answer is translatory or sliding, as both terms describe the same type of movement.

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183. The kennedy classification of this RPD is:

Explanation

The Kennedy classification of this RPD is Kennedy class I because it is a partially edentulous situation where there are missing teeth in one arch with no missing teeth in the opposing arch. Kennedy class I is characterized by bilateral edentulous areas located posterior to the remaining natural teeth.

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184. What is a RPD component is not needed in this type of case?:

Explanation

Indirect retainers are not needed in this type of case because they are typically used in removable partial dentures to provide stability and prevent displacement of the prosthesis. However, in this specific case, there may be sufficient support and stability from other components such as the major connector, guide planes, and direct retainers, making the use of indirect retainers unnecessary.

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185. Removable Prosthodontics:

Explanation

Removable prosthodontics refers to the placement of dental prostheses that can be easily taken out and put back in by the patient. This allows for easy cleaning and maintenance of the prosthesis, as well as the ability to remove it when necessary. The correct answer states that removable prosthodontics allows for easy removal and insertion, which is true.

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186. Prosthesis:

Explanation

The given options are all related to different uses or purposes of a prosthesis. The correct answer states that a prosthesis is something that is newly created or made. This aligns with the definition of a prosthesis, which is an artificial device or body part that is used to replace a missing or damaged body part. Therefore, the correct answer accurately describes the concept of a prosthesis.

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187. Retainer:

Explanation

The correct answer is "ប្រដាប់ដាក់ភ្ជាប់ទៅនឹងធ្មេញជន្ទល់" which means "to attach to the back of the head". This explanation suggests that a retainer is something that is used to attach or connect to the back of the head, possibly to hold or support something in place.

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188. Retention:

Explanation

This answer states that retention is related to understanding through observation. It implies that retention is the ability to remember and recall information based on what is seen or observed.

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189. Cohésion គឺជាទំនាញ Molécule:

Explanation

not-available-via-ai

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190. សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:

Explanation

not-available-via-ai

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191. Parts that offer support for removable partial denture are following:

Explanation

The rest and denture base are parts that offer support for a removable partial denture. The rest is a component that rests on the remaining tooth structure and provides stability and support for the denture. The denture base is the part of the denture that sits on the oral tissues and distributes the forces evenly. Together, the rest and denture base work to ensure that the partial denture is securely held in place and functions properly.

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192. Labial bar is indicated when:

Explanation

The labial bar is indicated when there is a lingual inclination of teeth. This means that the teeth are leaning towards the tongue rather than towards the lips. The labial bar is a type of dental appliance that is used to correct this lingual inclination and bring the teeth into proper alignment. It is not indicated for a diastema (gap between teeth), labial inclination of teeth (leaning towards the lips), or periodontally weak teeth.

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193. Reciprocal arm បើសិនជាធ្វើបានអោយស្របនឹងៈ:

Explanation

The answer "បន្ទាត់ចូល" is correct because it is the only option that fits the given context. The question asks for something that is reciprocal to the "បន្ទាត់ចូល" (entry line), and none of the other options fit this requirement. Therefore, "បន្ទាត់ចូល" is the correct answer.

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194. Minor Connector ភ្ជាប់ពីទំពក់ទៅៈ:

Explanation

The major connector is the correct answer because it is the component of a dental prosthesis that connects the various parts together. It provides stability and support to the denture base, pontic, and rest. Without a major connector, the other components would not be securely held in place, leading to a poorly functioning prosthesis.

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195. Undercut at the point of origin of a clasp can be approached by:

Explanation

A hair pin clasp can be used to approach an undercut at the point of origin. This type of clasp is designed with a flexible wire that can be bent and adjusted to fit around the tooth and engage the undercut, providing stability and retention for the dental prosthesis. The hair pin clasp is commonly used in removable partial dentures to secure the prosthesis in place and prevent it from dislodging during function.

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196. Back action clasp use:

Explanation

Back action clasps are used in Class I occlusion. Class I occlusion refers to a normal bite where the upper teeth slightly overlap the lower teeth. In this type of occlusion, the back action clasp provides stability and retention for removable partial dentures. It engages undercuts on the abutment teeth, allowing the denture to securely attach to the natural teeth. This type of clasp is commonly used when there is sufficient space and suitable abutment teeth present in the patient's mouth.

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197. Following parts of a RPD may act as indirect retainer except:

Explanation

The retentive tip is not a part of a removable partial denture (RPD) that acts as an indirect retainer. Indirect retainers are components of an RPD that help stabilize the denture by resisting movement of the denture base away from the supporting tissues. Rests, proximal plates, and minor connector supporting rests are all examples of components that can act as indirect retainers. However, a retentive tip is not involved in providing indirect retention and therefore does not act as an indirect retainer.

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198. Following factors increase effectiveness of indirect retainer, except:

Explanation

The increased flexibility of the minor connector used does not increase the effectiveness of the indirect retainer. The effectiveness of an indirect retainer is determined by factors such as the distance from the fulcrum line, the supporting tooth surface, and the quality of the direct retainer. The flexibility of the minor connector is not directly related to the effectiveness of the indirect retainer.

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199. For indirect retainer to be effective, most important factor is:

Explanation

The correct answer is that the principal occlusal rest on the direct retainer should be firm on the rest seats. This means that the occlusal rest should fit securely and snugly on the rest seats of the teeth, providing stability and support for the removable partial denture. If the rest is not firm on the rest seats, it can lead to movement and instability of the denture, compromising its effectiveness as an indirect retainer.

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200. Impression materials that may be used to register the supporting form of edentulous area in an distal extension denture base are following, except:

Explanation

Hydrocolloids are not typically used to register the supporting form of an edentulous area in a distal extension denture base. Hydrocolloids are generally used for preliminary impressions and not for capturing the detailed anatomy of the edentulous area. Waxes, silicone impression materials, and impression paste are commonly used for this purpose as they provide accurate and detailed impressions of the supporting form.

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Stability:
Support...
សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែក...
More acceptable esthetically and less caries formation for bar clasp...
សមាសភាពនៃធ្មេញដាក់ដោះមួយផ្នែក...
The kennedy classification of this RPD is:
The Kennedy Classification for this cast is:
Courbe d’occlusion រត់តាម arc de circle...
Interfacial Surface Tension...
Mould...
ទិសដៅធ្មេញដោះដាក់មួយផ្នែកអោយមានទំរង់ៈ:...
An ideal design a major connector should possess the following...
The diagnosis of master cast of RPD be for design framework should be:
The goal of extension of RPD framework should be:
សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:...
All of the following clasps are infrabulge clasps except ?:
An area undercut may preclude the selection of :
Denture Base...
Shoulder ធ្វើអោយៈ:
Guiding plane are:
Guiding plane are:
Angle at junction between major connector and denture base minor...
Marginal ridge for a rest seat should be reduced by at least:
Bar Clasp វាមាន:
RPD movements away from tissues may occur due to following except:
Attachment between acrylic resin and metal base may be achieved by...
Rotation in a distal extension denture base occurs because of...
The Removable Partial Denture design should be finalized prior to:
Component of a clasp assembly is:
The total retention for a RPD is obtained from:
Function of denture bases :
The basic movement of mandible:
Requirements of a Major connector:
Component of a clasp assembly are:
Impression:
ទិសដៅធ្មេញដាក់ដោះមួយផ្នែក...
លក្ខខណ្ឌដែលត្រូវធ្វើធ្មេញដាក់ដោះមួយផ្នែក...
លក្ខខណ្ឌដែលត្រូវធ្វើធ្មេញដាក់ដោះមួយផ្នែក...
When designing palatal connectors, relief should be given for:
For the preparation of rest seat:
Which of the following chronic conditions may cause tooth abrasion?:
Direct Retainer:
The Kennedy classification of this RPD is:
If this RPD was fabricated exactly as drawn on the design cast, which...
The denture base acrylic resin minor connector on the patient's left...
Ponctic...
Mold គឺជាគំរោងធ្វើពីៈ:
A clasp assembly should:
Reason (s) for selecting lingual plate major connectors is/are?:
ទិសដៅនៃធ្មេញដាក់នោះ...
An ideal design framework of RPD should be:
The function of the guide plate is to:
What would be the best denture base connectors when there is limited...
សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីអោយធ្មេញនៅសល់ៈ:...
លក្ខខ័ណ្ឌដែលត្រូវធ្វើធ្មេញដាក់ដោះមួយផ្នែកត្រូវប្រើៈ:...
A removable partial denture may be:
Minor Connector តភ្ជាប់ទៅៈ:
Removable partial denture movements away from tissue may occur due to...
Rest អាចៈ:
Rest អាចសណ្តូកលើផ្ទៃ:
Method to determine height of floor of the mouth is:
A removable partial denture may be :
A continuous bar is otherwise known as:
Retentive arm ចូលទៅក្នុងៈ:
Finishing line junction with major connector should have angle:
Bar Clasp ធ្វើអោយចំណីអាហារ:
Incisal rests:
Major Connector ធ្វើអោយៈ:
Limitations to use of internal attachment are following except:
Infrabulge clasp is advocated by:
The minimum thickness of resin that embeds the metal framework is:
Best method to check occlusion intraorally to assess relining of RPD...
Physiologic Rest in a position of vertical dimension which can be...
An ideal clasp assembly should possess the following quality:
The total retention for a RPD is obtained from:
Acrylic resin bases is :
Maxillary major connectors most common use is:
Anterior posterior palatal strap especially use is:
Full palatal plate:
Minor connector may be :
Prosthodontics:
A class I modification 0 of RPD normally are have many clasps?:
Mandibular gridwork design of minor connectors:
The correct answer the basic movements of the mandible:
When the survey line is height on the Mesial or Distal but low on the...
Rest អាច :
Incisal rests:
ទិសដៅនៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:...
ទិសដៅនៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:...
សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:...
Following condition(s) is/are also called as distal extension partial...
Floor of the rest seat should be:
Approach arm វាចូលដល់ Undercut តាមរយៈ :
A minor connector located at embrasure should be:
When a minor connector contacts tooth surface on either side of...
Rest នៅមុខទំពាររាងវាៈ:
Major Connector ជាស្ពានៈ:
La relation centrée les condyles នៅក្នុងៈ:
Classification of lever system is based on location of:
All of the following clasps are infrabulge clasps except:
The open lattice type on a maxillary class I Removable Partial...
Height of contour determine is a:
What is the most common use material for casting framework of RPD:
The gridwork minor connector on a maxillary class I removable partial...
Guide plates for anterior teeth:
The total retention for a RPD is obtained from:
Distal extension RPD is :
The most important cause of failure of patients wear RPD is due to:
Factors influencing the support of a distal extension denture base by...
A combination clasp assembly generally has:
The external finish line on a maxillary class 1 RPD originates from...
The Gridwork of Minor Connector on a maxillary class 1 RPD:
A jaw which is moving in a ”left or right” motion would be called...
Edentulous Space គឺកន្លែងធ្មេញដែល :
Indirect Retainer...
Cast:
សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:...
ចំណាត់ថ្នាក់ទី 4...
Denture bases of removable partial denture offer:
ទំពក់ Circlet:
ទំពក់ Circlet:
Back Action Clasp:
Rest Plate System...
Floor of the cingulum rest seats is placed towards:
កន្ទុយរបស់ Rest...
Rest នៅផ្នែក Cingulum គេប្រើៈ:
Major Connector ភ្ជាប់ពីៈ:
In the following philosophy of RPI system, the functional force is...
Distance of indirect retainer from fulcrum line is affected by...
Chemical bonding of resin to metal involves following, except:
Designing of a prosthesis requires following consideration:
Guiding planes which are not in the same parallel plane horizontally:
The minor connector that contacts the guiding plane:
Clasp retention is:
A removable partial denture may be:
A tissue undercut may preclude the selection of:
The external finish line on a maxillary class I RPD originates from...
Rigid metal retention is associated with:
The internal and external finish line is:
An ideal clasp assembly should possess the following quality:
If a third molar is absent and not to be replaced :
Reciprocation between bracing and retentive components requires:
Occlusal rest preparation should be:
The junction of mandibular minor connector with major connector is :
What are the indications for a linguo plate as a major connector for a...
The superior border of lingual bar should lie :
Physiologic Rest is a position of vertical dimension which can be...
Atmosphéric Pressure:
During biting a maxillary class I RPD with rotate around a line...
សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បី...
សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បី...
Considering the design of an RPD for the mandibular arch:
Fixed Prosthodontics:
The superior border of this major connector:
In this Class I mandibular removable partial denture, rests...
A lingual plate major connector may be selected be cause:
In which of the following mandibular positions are the teeth in...
Function of the teeth is /are:
លក្ខខ័ណ្ឌដែលត្រូវធ្វើធ្មេញដាក់ដោះមួយផ្នែកដែលកន្លែងអត់ធ្មេញមានៈ:...
Rest ត្រូវតែៈ:
When designing palatal major connectors ,relief should for:
The superior border of linqual bar should be:
What are the functions of an indirect retainer:
Stability is mainly against:
Indirect retainer:
In removable partial denture, health of gingival tissue is ensured by:
Small window in relief wax distal to terminal abutment in distal...
Ring Clasp:
Rest នៅមុខខាំកាត់ incisal :
Parts that offer support for RPD are following:
សាច់ដុំ Elevation or closure of the mouth:
Plan d’ occlusion parallèle ជាមួយៈ:
Attachment between porcelain tooth and denture base resin is:
In a class III situation, the retentive tip should be:
Following condition(s) is/are also called as distal extension partial...
Retentive tip of a clasp should usually be designed to be placed in:
Metal bases use :
For obtaining functional impression for RPD :
Which of the following maxillary major connectors possesses the least...
The superior border of mandibular lingual bar major connector should...
A mandibular movement which is> would be best classified as...
Protrusive or Retrusive movements can also be...
The kennedy classification of this RPD is:
What is a RPD component is not needed in this type of case?:
Removable Prosthodontics:
Prosthesis:
Retainer:
Retention:
Cohésion គឺជាទំនាញ Molécule:
សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:...
Parts that offer support for removable partial denture are following:
Labial bar is indicated when:
Reciprocal arm...
Minor Connector ភ្ជាប់ពីទំពក់ទៅៈ:
Undercut at the point of origin of a clasp can be approached by:
Back action clasp use:
Following parts of a RPD may act as indirect retainer except:
Following factors increase effectiveness of indirect retainer, except:
For indirect retainer to be effective, most important factor is:
Impression materials that may be used to register the supporting form...
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