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

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  • 1/406 Questions

    The basic movement of mandible:

    • Hinge ,lateral and translatory movement
    • Hinge movement
    • Translatory movement
    • Lateral movement
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About This 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.

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

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  • 2. 

    Requirements of a Major connector:

    • Rigidity, non interference with tissues, minimize food impaction and unobtrusive

    • Connects various parts

    • Distributes functional loads to both teeth and mucosa

    • Partial denture acts as one unit

    Correct Answer
    A. Rigidity, non interference with tissues, minimize food impaction and unobtrusive
    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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  • 3. 

    Component of a clasp assembly are:

    • One or two rests, a retentive arm, a bracing or reciprocating element, one minor connectors, one major connector

    • One rest, a retentive arm , a bracing or reciprocating element, one minor connector

    • One minor connector, one major connector, one rest, two rests, one retentive arm, one bracing arm

    • Two minor connectors, one major connector , one rest, one retentive arm, one bracing or reciprocating element

    Correct Answer
    A. One or two rests, a retentive arm, a bracing or reciprocating element, one minor connectors, one major connector
    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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  • 4. 

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

    • I clasp

    • Y clasp

    • T clasp

    • U clasp

    Correct Answer
    A. I clasp
    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. 

    The kennedy classification of this RPD is:

    • Class I mod I

    • Class IV mod II

    • Class II mod I

    • Class I mod II

    Correct Answer
    A. Class I mod I
    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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  • 6. 

    The Kennedy Classification for this cast is:

    • Class III mod I

    • Class III mod II

    • Class III

    • Class III mod III

    Correct Answer
    A. Class III mod I
    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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  • 7. 

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

    • All are correct

    • Unification

    • Stress distribution

    • Cross Arch stabilization

    Correct Answer
    A. All are correct
    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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  • 8. 

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

    • All are correct

    • Determine path of insertion

    • Determine high of contour

    • Determine parallelism of abutments

    Correct Answer
    A. All are correct
    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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  • 9. 

    The goal of extension of RPD framework should be:

    • All are correct

    • Stability framework

    • Function, Occlusion

    • Tissues adaptation

    Correct Answer
    A. All are correct
    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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  • 10. 

    All of the following clasps are infrabulge clasps except ?:

    • Akers clasp

    • Ibar

    • Modified T bar

    • Roach clasp

    Correct Answer
    A. Akers clasp
  • 11. 

    An area undercut may preclude the selection of :

    • An infrabulge clasp

    • A suprabulge clasp

    • A Half and half clasp

    • A combination clasp

    Correct Answer
    A. An infrabulge clasp
    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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  • 12. 

    Guiding plane are:

    • Usually multiple and usually parallel

    • Usually single

    • Usually multiple

    • Usually parallel

    Correct Answer
    A. Usually multiple and usually parallel
    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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  • 13. 

    Guiding plane are:

    • Usually single and usually multiple

    • Usually single

    • Usually multiple

    • Usually parallel

    Correct Answer
    A. Usually single and usually multiple
    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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  • 14. 

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

    • < = 90 degrees

    • > 90 degrees

    • > 110 degrees

    • 90 degrees

    Correct Answer
    A. < = 90 degrees
    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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  • 15. 

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

    • 1.5mm

    • 1mm

    • 2mm

    • 3mm

    Correct Answer
    A. 1.5mm
    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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  • 16. 

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

    • Mastication

    • Pull of food

    • Moving border tissues

    • Gravity

    Correct Answer
    A. Mastication
    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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  • 17. 

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

    • All are correct

    • Nail heads

    • Retention loops

    • Diagonal spurs

    Correct Answer
    A. All are correct
    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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  • 18. 

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

    • Are all corrected

    • Periodontal ligament

    • Supporting abutment teeth

    • Soft tissue of residual ridge

    Correct Answer
    A. Are all corrected
    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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  • 19. 

    The Removable Partial Denture design should be finalized prior to:

    • Any fixed prosthodontics treatment and preparation of rest seats

    • Any emergency treatment

    • Remove third molar

    • Remove crown bridge

    Correct Answer
    A. Any fixed prosthodontics treatment and preparation of rest seats
    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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  • 20. 

    Component of a clasp assembly is:

    • One or two rests, a retentive arm, a bracing or reciprocating element and one or two minor connector

    • One rest, a retentive arm, a bracing or reciprocating element, one minor connector

    • One minor connector, one major connector, one rest, one retentive arm, one bracing or reciprocating element

    • Two minor connectors, one major connector, one rest, one retentive arm, one bracing or reciprocating element

    Correct Answer
    A. One or two rests, a retentive arm, a bracing or reciprocating element and one or two minor connector
    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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  • 21. 

    The total retention for a RPD is obtained from:

    • Fictional retention from guide surface/guide plate contacts

    • Artificial teeth with major connector

    • Artificial teeth with natural teeth

    • Occlusion of artificial teeth

    Correct Answer
    A. Fictional retention from guide surface/guide plate contacts
    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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  • 22. 

    Function of denture bases :

    • All are corrected

    • Support and retain denture teeth

    • Stress distribution surface area

    • Improve esthetics

    Correct Answer
    A. All are corrected
    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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  • 23. 

    Stability:

    • ក្រាសធ្មេញដាក់លើក្រអូមណែន និងមិនរំជួល

    • ក្រាសធ្មេញដាក់លើក្រអូម

    • ក្រាសធ្មេញដាក់លើក្រអូមរលុង

    • ក្រាសធ្មេញដាក់លើក្រអូមបណ្តាលអោយឈឺសាច់

    Correct Answer
    A. ក្រាសធ្មេញដាក់លើក្រអូមណែន និងមិនរំជួល
    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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  • 24. 

    Support គឺការទ្រក្រាសធ្មេញអោយ :

    • មានលំនឹង

    • ទ្រេតចេញ

    • ទ្រេតចូល

    • ធ្លាក់ចុះ

    Correct Answer
    A. មានលំនឹង
  • 25. 

    សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែក ដើម្បីជួយការពារធ្មេញដែលនៅសល់ :

    • អោយរឹងណែនដដែល - កុំអោយរង្គើ

    • អោយរង្គើ

    • អោយរឹងណែនដដែល

    • អោយខុសជួរ

    Correct Answer
    A. អោយរឹងណែនដដែល - កុំអោយរង្គើ
    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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  • 26. 

    សមាសភាពនៃធ្មេញដាក់ដោះមួយផ្នែក :

    • Ponctic និង Denture Base

    • Ponctic

    • Denture Base

    • Abutment Tooth

    Correct Answer
    A. Ponctic និង Denture Base
    Explanation
    The correct answer is "Ponctic and Denture Base."

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  • 27. 

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

    • Appophyse crista-galli

    • Sphénoide

    • Temporal

    • Edmoide

    Correct Answer
    A. Appophyse crista-galli
  • 28. 

    Interfacial Surface Tension គឺជាលទ្ធភាពរបស់ម៉ូលេគុលៈ:

    • ទាំងពីរស្រូបចូលគ្នា

    • ទាំងបីស្រូបចូលគ្នា

    • ទាំងបួនស្រូបចូលគ្នា

    • ទាំងប្រាំស្រូបចូលគ្នា

    Correct Answer
    A. ទាំងពីរស្រូបចូលគ្នា
    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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  • 29. 

    Mould គឺការជ្រើសរើសគ្រាប់ធ្មេញដូចជាៈ:

    • ទំហំ និង រាងរៅ

    • កំពស់ និង ទំហំ

    • ទំហំ និង ក្រឡាផ្ទៃ

    • ទំហំ និង ចំណុះ

    Correct Answer
    A. ទំហំ និង រាងរៅ
    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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  • 30. 

    ទិសដៅធ្មេញដោះដាក់មួយផ្នែកអោយមានទំរង់ៈ:

    • មុខល្អ

    • មុខមាត់តូច

    • មុខមាត់ធំ

    • មុខវៀច

    Correct Answer
    A. មុខល្អ
    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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  • 31. 

    សារៈប្រយោជន៍នៃធ្មេញដាក់ដោះមួយផ្នែកដើម្បីៈ:

    • ទ្រទ្រង់ទំរង់មុខបំពញឡើងវិញ

    • ទ្រទ្រង់សាច់មុខអោយមានសភាពប៉ោង

    • ទ្រទ្រង់សាច់មុខអោយមានសភាពផត

    • ទ្រទ្រង់សាច់មុខអោយមានសភាពប៉ោងដោយកន្លែង

    Correct Answer
    A. ទ្រទ្រង់ទំរង់មុខបំពញឡើងវិញ
    Explanation
    The correct answer suggests that the purpose of growing facial hair is to regain a sense of masculinity.

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  • 32. 

    Denture Base គឺជាកន្លែងដែលគេដាំៈ:

    • គ្រាប់ធ្មេញ

    • គ្រាប់ Amalgame

    • ជាតិ Ciment

    • ជាតិ Ionomer

    Correct Answer
    A. គ្រាប់ធ្មេញ
    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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  • 33. 

    Shoulder ធ្វើអោយៈ:

    • មានលំនឹង

    • របូត

    • ឃ្លីងឃ្លោង

    • ទាំងបីខាងលើត្រូវ

    Correct Answer
    A. មានលំនឹង
  • 34. 

    Bar Clasp វាមាន:

    • សោភ័ណភាព

    • មិនសូវល្អមើល

    • រាងធំខុសធម្មតា

    • រាងក្រងិកក្រង៉ក់

    Correct Answer
    A. សោភ័ណភាព
    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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  • 35. 

    Maxillary major connectors most common use is:

    • Anterior posterior palatal strap

    • Full palatal strap

    • Palatal strap

    • Anterior palatal strap

    Correct Answer
    A. Anterior posterior palatal strap
    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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  • 36. 

    Anterior posterior palatal strap especially use is:

    • Torus palatal

    • Maximum rigidity

    • Minimum bulk

    • Use in most cases

    Correct Answer
    A. Torus palatal
    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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  • 37. 

    Full palatal plate:

    • Maximum tissue support , connector long distal extension cases, six or less anterior teeth remain

    • Minimum tissue support

    • Connector of choice in short distal extension cases

    • Six or more anterior teeth remain

    Correct Answer
    A. Maximum tissue support , connector long distal extension cases, six or less anterior teeth remain
    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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  • 38. 

    When designing palatal connectors, relief should be given for:

    • Palatal torus

    • Ridge area

    • Elevated mid suture line

    • Rugae area

    Correct Answer
    A. Palatal torus
    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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  • 39. 

    For the preparation of rest seat:

    • Marginal ridge should be reduced by 1 mm

    • Marginal ridge should be reduced by 25 mm

    • The outline to have greater length than width

    • The outline to have greater width than length

    Correct Answer
    A. Marginal ridge should be reduced by 1 mm
    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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  • 40. 

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

    • Hard brush using and strong brushing

    • Pipe smoking

    • Occlusion trauma

    • Strong mastication

    Correct Answer
    A. Hard brush using and strong brushing
    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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  • 41. 

    The Kennedy classification of this RPD is:

    • Kennedy class III mod I

    • Kennedy class III

    • Kennedy class IV mod I

    • Kennedy class II mod I

    Correct Answer
    A. Kennedy class III mod I
    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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  • 42. 

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

    • All are correct

    • Minor connectors

    • Lingual bar

    • Direct and Indirect retainers

    Correct Answer
    A. All are correct
    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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  • 43. 

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

    • 2/3 to ½ the length of the residual ridge

    • On the retromolar pad

    • 1/3 the length of the residual ridge

    • Have a mesh acrylic retention area

    Correct Answer
    A. 2/3 to ½ the length of the residual ridge
    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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  • 44. 

    A clasp assembly should:

    • All are correct

    • Have a retentive arm with adequate length and taper for flexibility

    • Have a retentive arm that terminates in an undercut

    • Have elements that considered together provide 180 degree encirclement

    Correct Answer
    A. All are correct
    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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  • 45. 

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

    • All are correct

    • The presence of lingual tori

    • Anticipated loss of one or more of the remaining teeth

    • A high lingual frenum

    Correct Answer
    A. All are correct
    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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  • 46. 

    An ideal design framework of RPD should be:

    • All are correct

    • Determine the path of insertion

    • As guiding planes

    • Locate retention areas

    Correct Answer
    A. All are correct
    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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  • 47. 

    The function of the guide plate is to:

    • All are correct

    • Help establish a definitive path of insertion/ dislodgement

    • Stabilize the RPD by controlling its horizontal position

    • Provide contact with the adjacent tooth

    Correct Answer
    A. All are correct
    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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  • 48. 

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

    • All metal base

    • Open lattice type

    • Mesh type

    • All plastic base

    Correct Answer
    A. All metal base
    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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  • 49. 

    A removable partial denture may be:

    • All tooth supported and tissue supported

    • All tooth supported

    • Tooth and tissue supported

    • All tissue supported

    Correct Answer
    A. All tooth supported and tissue supported
    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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Quiz Review Timeline (Updated): Jul 11, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Jul 11, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 23, 2019
    Quiz Created by
    Limhort2019
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