Partial Denture ( Dr. Sokly) II

The correct answer is "all are corrected". This means that for obtaining a functional impression for RPD (removable partial denture), 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 a proper fit and function of the RPD.

The correct answer is "Plan de camper." Plan de camper is a dental term that refers to a parallel occlusal plane. This plane is used to evaluate the occlusion of the teeth and ensure that the upper and lower teeth are aligned properly. It is an important aspect of dental treatment planning and helps in achieving a balanced and functional bite. The other options, such as plan frontal and plan sagittal médian, do not specifically refer to the occlusal plane, while plan de francfort is a different concept related to craniofacial measurements.

The correct answer is "មិនសូវមានសោភ័ណភាព" which means "It does not have many powers". This answer is supported by the statement in the question that says "គ្របលើរចនាសម្ព័ន្ធធ្មេញច្រើន" which means "It does not have many powers". Therefore, the correct answer is that the Circlet Arm does not have many powers.

Back action clasps are used in Class I malocclusions. Class I malocclusion refers to a dental condition where the upper and lower teeth are properly aligned, but individual teeth may be misaligned or crowded. Back action clasps are designed to provide stability and support to the teeth in Class I malocclusions, helping to improve the alignment and function of the bite.

The correct answer is "សម្ពាធក្រៅធំជាងសម្ពាធក្នុង" (The atmospheric pressure is higher than the pressure inside). This is because atmospheric pressure refers to the force exerted by the weight of the atmosphere on a given area. The pressure inside an object or a closed system is generally lower than the atmospheric pressure outside.

When the edentulous span (the gap between teeth where the partial denture is placed) is long, the stresses transferred to the abutment teeth are decreased. This is because a longer edentulous span distributes the forces exerted on the denture more evenly, reducing the strain on the abutment teeth. Therefore, a longer edentulous span helps to minimize the potential damage or discomfort to the abutment teeth caused by the partial denture.

The correct answer is "ទ្រទ្រង់ទំរង់មុខបំពញឡើងវិញ". This answer suggests that the reason for seasoning the meat is to enhance its flavor.

The correct answer is "ប្រដាប់ពាក់នៅពេលព្យាបាលធ្មេញក្នុងមាត់" which means "Connect the appliance during power outage". This answer is the most logical and relevant option as it explains the purpose of connecting the appliance during a power outage, which is to ensure that the appliance continues to function during the outage. The other options do not provide a clear explanation or do not relate to the context of the question.

The function of denture bases is to support and retain denture teeth, provide stress distribution across a larger surface area, and improve esthetics. All of these functions are correct. Denture bases play a crucial role in ensuring the stability and functionality of dentures, as well as enhancing the overall appearance of the patient's smile.

The superior border of the lingual bar should lie at least 4mm below the gingival margin. This is important to ensure proper support and stability of the lingual bar and prevent any irritation or discomfort to the surrounding soft tissues. Placing the superior border too deep in the lingual sulcus may cause pressure on the tissues and lead to complications. Similarly, placing it at the cingulum of anterior teeth or at least 8mm below the gingival margin would not provide the necessary support and stability required for the lingual bar.

A lingual bar is used in conditions where the lingual sulcus is deep. The lingual bar is a type of dental prosthesis that is placed on the lingual (tongue) side of the teeth. It is used to provide support and stability to the teeth in cases where the lingual sulcus is deep, which means there is more space between the teeth and the tongue. This helps to prevent movement or displacement of the prosthesis and ensures proper functioning of the teeth.

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An ideal clasp assembly should possess 180 degree encirclement because it ensures maximum stability and security. This means that the clasp completely wraps around the object it is securing, providing a strong and secure hold. With 180 degree encirclement, the clasp is less likely to slip or become loose, making it ideal for holding objects in place.

Rigid metal retention is associated with all of the options given. A dual path of insertion is necessary for a RPD with rigid metal retention as it allows for better stability and retention. A class IV RPD, which is a removable partial denture that replaces missing teeth in the anterior region, often requires rigid metal retention to ensure proper fit and function. Additionally, excellent esthetics are important when using rigid metal retention to ensure that the RPD blends in seamlessly with the natural teeth. Therefore, all of the options given are correct.

The lingual arch is not a mandibular major connector because it is a minor connector used to stabilize and support the lingual surfaces of the mandibular teeth. Mandibular major connectors, on the other hand, are used to connect the major parts of a removable partial denture, such as the lingual plate, lingual bar, or labial bar, to provide stability and support to the prosthesis.

The correct relationship of the foot of an I-bar to the survey line on an abutment for an extension RPD is that the foot should be totally below the survey line. This means that the bottom of the I-bar should be positioned entirely below the height of the contour on the abutment.

The advantage of using a palatal strap is that it provides increased rigidity with less bulk. This means that the appliance will be more stable and durable, while also being more comfortable for the patient. Additionally, the palatal strap can be used in Kennedy class I partial dentures, further enhancing its versatility and effectiveness.

The guide surface or guide plate preparation should be curved bucco-lingually. This means that the curved surface should follow the contour of the buccal and lingual surfaces of the teeth. This is important to ensure proper fit and stability of the guide surface or guide plate. Curving the surface in this direction allows for better adaptation to the natural shape of the teeth and helps to prevent any interference or discomfort for the patient.

The given options suggest different classes of bar clasp. The correct answer is Class I, which means that the bar clasp is used in Class I cases. This implies that the bar clasp is specifically designed and recommended for Class I cases, indicating a certain level of complexity or specific requirements that are met by this particular type of bar clasp.

Improper preliminary rehabilitative restorative procedures can lead to failure of patients wearing RPDs. These procedures include the initial steps taken before the RPD is fabricated, such as the assessment of the patient's oral health, the planning and execution of any necessary dental treatments, and the preparation of the mouth for the RPD. If these procedures are not performed correctly, it can result in an ill-fitting or uncomfortable RPD, causing the patient to experience difficulties and ultimately leading to failure.

Relief under a maxillary major connector is generally not required because the maxillary arch tends to have a flatter contour compared to the mandibular arch. The maxillary major connector usually rests passively on the underlying tissues without causing any discomfort or pressure. However, in certain cases where there are irregularities or prominences in the maxillary arch, relief may be necessary to ensure a proper fit and distribution of forces. Overall, relief under a maxillary major connector is not commonly needed.

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 a connector would impede its function and potentially cause discomfort for the patient. The gridwork minor connector is designed to connect the major connectors to the rest of the framework, providing stability and support for the partial denture.

The correct answer is "ការដាក់ធ្មេញសិប្បនិម្មិតមានត្រណាប់ដោះចេញចូលបាន" which means "Removable prosthetics can be taken out and put back in". This answer accurately describes the nature of removable prosthetics, which are dental appliances that can be easily removed and reinserted into the mouth.

Resin bases have the advantage of being aesthetically superior to metal bases. This means that they are more visually pleasing and can provide a more natural appearance. Resin bases can be color-matched to the patient's natural teeth, resulting in a more seamless and attractive smile. Additionally, resin bases are typically more comfortable for the patient as they are lighter and less bulky compared to metal bases.

Metal bases are used in cases where there is a small edentulous space and there is no room for grid work. Grid work is a type of partial denture framework that is used to support the artificial teeth. In cases where there is not enough space for grid work, a metal base can be used instead. This allows for a more stable and secure fit of the denture in the mouth.

The correct answer is "ប្រើជាលិកាទន់ដើម្បីទ្រទ្រង់" which means "Use as a worker to plow." This answer suggests that the purpose of using a buffalo is to use it as a worker for plowing the land.

The correct answer is "One or two rests, a retentive arm, a bracing or reciprocating element and one or two minor connectors." This answer includes all the necessary components of a clasp assembly, which are one or two rests, a retentive arm, a bracing or reciprocating element, and one or two minor connectors. The other options either have missing components or have incorrect quantities of the components required for a clasp assembly.

The correct answer is "Occlusal" because it refers to the biting surface of the teeth. The term "occlusal" is used to describe the contact between the upper and lower teeth when the mouth is closed. In this context, placing the direction of insertion on the occlusal surface means that the force is being applied to the biting surface of the teeth.

In Kennedy's classification, the least common arch is class IV. This classification system is used to categorize partially edentulous arches based on the location and number of remaining teeth. Class IV arches refer to those cases where there are missing teeth bilaterally in the posterior region, but the anterior region is intact. Class I, II, and III arches have different patterns of missing teeth, making class IV the least common among them.

The correct answer is "មិនអាចបត់បែនបាន" which means "cannot be rotated". This suggests that the "Retentive Arm" is unable to rotate or move.

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A distal extension removable partial denture (RPD) is a type of dental prosthesis that is supported by both the underlying tissues and the remaining natural teeth. This means that the RPD relies on both the gums and bone structure as well as the adjacent teeth for stability and support. It is used when there are missing teeth in the posterior region of the mouth and there are healthy teeth present on either side of the edentulous space.

The correct answer is "មុខ Occlusal". In dentistry, occlusal refers to the biting surface of the teeth, which is the surface that comes into contact with the opposing teeth when the jaws are closed. This surface is important for chewing and grinding food. The other options, such as vestibular, linguale, and mésiale, refer to different aspects of tooth anatomy and are not directly related to the biting surface. Therefore, the correct answer is "មុខ Occlusal".

The correct answer is "តួអញ្ចាញដែលគ្មានធ្មេញ" which translates to "rest without teeth". This answer is the only one that refers to a dental term, specifically a type of minor connector used in dental prosthetics. The other options, "ស្ពានសំខាន់" which translates to "important bone" and "Clasp" which is a general term, do not specifically relate to dental terminology.

Using a metal denture base provides an advantage of increased tissue tolerance. This means that the metal base is better tolerated by the surrounding tissues in the mouth. This can lead to improved comfort for the patient and reduced irritation or inflammation of the oral tissues.

An ideal clasp assembly should possess the quality of support. This means that it should provide stability and hold the components securely in place. Support is essential to prevent any movement or displacement of the clasp assembly. It ensures that the clasp functions effectively and does not cause any discomfort or damage to the wearer.

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The correct answer is "គ្រាប់ធ្មេញ" (resin). This is because a denture base is the part of a denture that rests on the oral tissues and supports the artificial teeth. It is typically made from a resin material that is biocompatible and durable. Amalgame, ciment, and ionomer are not commonly used materials for denture bases.

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Tissue stops in an impression tray help in providing anterior-posterior stabilization. This means that they help in preventing any movement or displacement of the tray while taking an impression of the teeth and surrounding tissues. This stability is crucial for obtaining accurate and precise impressions, as any movement can lead to distortions or inaccuracies in the final result. Therefore, tissue stops play a significant role in ensuring the reliability and quality of the impression.

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The correct answer is "អោយជាលិកានៅដដែល" (Allow the employee to work remotely). This answer is supported by the context of the question which is discussing the rest or break that an employee can have. The phrase "នៅដដែល" means "to work remotely" or "to work from a different location." Therefore, allowing the employee to work remotely is a possible option for rest or break.

The correct answer is "តាមទិស Long Axis Abutment". This means that the weight can be transmitted along the long axis of the abutment.

The minor connector connects the rest to other components in a dental prosthesis, such as the major connector, clasp, denture base, or pontic. In this case, the minor connector connects the rest to the major connector.

The correct answer is "ទប់កំលាំងធ្វើមិនអោយរបូត" which means "Direct Retainer prevents displacement". This answer states that a direct retainer is designed to prevent the prosthesis from moving or dislodging during function. It helps to maintain stability and retention of the prosthesis, ensuring that it stays in place and functions properly.

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The reciprocal clasp arm of a removable partial denture (RPD) should lie above the height of contour. This is because the height of contour is the area of greatest convexity on the abutment tooth, and placing the clasp arm above this point ensures that it engages the tooth in a stable manner. By lying above the height of contour, the clasp arm can provide adequate retention and stability to the RPD, allowing it to function properly and prevent dislodgement during mastication and other oral activities.

The correct answer is "ជាលិកាទាំងអស់ដែលបាតក្រអូមគ្រប" which means "all the above options". This answer implies that all the options mentioned in the question are correct and are referring to different aspects of the subjacent tissue.

The major connector is responsible for providing stability and support to the removable dental prosthesis. It helps distribute the forces evenly across the remaining teeth and the edentulous areas. This ensures that the prosthesis is securely held in place and prevents any movement or displacement during function. Additionally, the major connector should have a smooth and comfortable contour to prevent any irritation or discomfort to the oral tissues. Therefore, having a major connector with good fit and design contributes to the overall comfort and function of the removable dental prosthesis.

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The important factor in determining the path of insertion/dislodgement is esthetic considerations. This means that when designing and placing a dental prosthesis, the path of insertion and removal should be carefully planned to ensure that it does not negatively impact the esthetics of the patient's smile. This includes considering factors such as the visibility of clasps or attachments, the alignment of the prosthesis with the natural teeth, and the overall appearance of the restoration.

Chrome cobalt is the most common material used for casting the framework of removable partial dentures (RPD). This is because chrome cobalt alloys offer a combination of strength, durability, and biocompatibility. They are resistant to corrosion and wear, making them suitable for long-term use in the oral cavity. Additionally, chrome cobalt alloys can be easily cast and adjusted to fit the patient's mouth comfortably. Overall, chrome cobalt is the preferred material for RPD framework due to its excellent mechanical properties and biocompatibility.

The external finish line on a maxillary class I RPD originates from the lingual of the guide plane of the terminal abutment and ends at the hamular notch. The hamular notch is a landmark located on the posterior border of the hard palate, near the last molar. It is used as a reference point for the placement of the finish line in order to ensure proper fit and stability of the removable partial denture.

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 not aligned directly on top of each other. This offset helps to distribute the load and stress evenly across the framework, preventing any weak points from forming. By offsetting the finish lines, the structure is made stronger and more resistant to potential weaknesses or failures.

The correct answer is "ក្រាសធ្មេញដាក់លើក្រអូមណែន និងមិនរំជួល" (The stability is placed on the shelf and not hung). This answer states that the stability is placed on the shelf and not hung, indicating that it is not suspended or supported from above.

The total retention for a RPD is obtained from the fictional retention from guide surface/guide plate contacts. This means that the retention of the removable partial denture is achieved through the contact between the guide surface and the guide plate, which creates a frictional force that holds the denture in place. The other options listed, such as artificial teeth with major connector, artificial teeth with natural teeth, and occlusion of artificial teeth, may contribute to the stability and functionality of the denture, but they do not directly affect the retention.

The correct answer is "ងាយស្រួលជួសជុល" which means "easy to wear". This answer is supported by the term "Circlet" which refers to a small circular band worn on the head as a decorative or symbolic ornament. The word "easy" suggests that the circlet is not complicated or difficult to put on or wear. Therefore, "easy to wear" is the most suitable explanation for the given term.

The correct answer is "មានកំពុកធ្មេញច្រើន" which means "There are many different types of gemstones". This answer is supported by the statement "ទំពក់ Circlet Arm អាចធ្មេញៈ" which means "Circlet Arm can be made of gemstones". Since the question is asking about the variety of gemstones, the answer "There are many different types of gemstones" is the most appropriate.

Class III RPDs are designed to resist the forces to which they are subjected. They are specifically designed for partially edentulous patients with bilateral distal extension edentulous areas. Class III RPDs have major connectors that extend anteriorly to the premolars and canines, providing additional stability and resistance to forces. This design helps distribute the forces evenly and minimize the risk of displacement or damage to the prosthesis.

In a distal extension removable partial denture (RPD), the abutment teeth are located at the front of the arch, while the artificial teeth extend towards the back of the arch. This creates a lever-like effect, which can cause the RPD to dislodge or put excessive stress on the abutment teeth. To prevent this, it is necessary to have a positive denture base-tissue relationship. This means that the RPD should have a close adaptation to the underlying tissues, providing stability and support to the prosthesis. This helps to distribute the forces evenly and prevent dislodgement of the abutment teeth.

The correct answer is "តាមកំរិតដើម" which means "according to the original level". This suggests that the purpose of pruning the branches is to maintain the original height or level of the tree.

Physiologic adjustment of the framework refers to the process of making necessary modifications to the framework in order to ensure proper fit and alignment with the teeth. This adjustment is important to ensure that the prosthesis is comfortable and functions correctly within the oral cavity. It involves making modifications to the framework to accommodate the shape, size, and position of the teeth.

The correct answer is "បញ្ឈរអោយធ្មេញសិប្បនិម្មិត" which means "Give the reciprocal arm". This answer is the most appropriate because it directly translates to the given phrase in the question. The other options do not accurately convey the meaning of the phrase.

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The correct answer is "ប្រដាប់ដាក់ភ្ជាប់ទៅនឹងធ្មេញជន្ទល់" which means "Retainer: to connect to the upper jaw." This answer suggests that a retainer is a dental device that is used to connect to the upper jaw in order to maintain the position of teeth after orthodontic treatment.

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The correct answer is "Plastic or metal crown". This answer suggests that a "ponctic" is a type of crown that can be made from either plastic or metal materials.

The correct answer is "ទប់បញ្ឈរ".

This answer states that "Rest" should not leave the workplace. This implies that "Rest" should stay at work and not take breaks or leave the premises during work hours.

The correct answer is "ម្ខាងទៀតដែលផ្ទុយគ្នានៃអ័ក្សកំណល់" which means "The part that contacts the rest of the denture". This answer indicates that the indirect retainer is the component of a removable partial denture that contacts the remaining teeth.

The correct answer is the Rest Plate System because it includes the concepts of a resting surface, an occlusal surface, and a small vestibule. This system is commonly used in dentistry to provide support and stability for dental prostheses. The other options mentioned, such as Vestibular Surface, Linguale Surface, and Alveolar Crest, are not directly related to the Rest Plate System and do not encompass all the necessary components.

The correct answer is "មិនប៉ះទៅនឹងធ្មេញជិតខាង" which means "Does not connect to the neighboring plate". This answer suggests that the rest plate system does not connect to the adjacent plate, indicating that it is separate or independent from it.

The correct answer is "Face occlusale." The face occlusale refers to the chewing surface of a tooth, which is the part of the tooth that comes into contact with the opposing tooth during biting and chewing. The other options, face mesiale, face distale, and face vestibulaire, refer to other surfaces of the tooth.

The given correct answer is "Minor Connector" because the major connector connects the different parts of a dental prosthesis, such as the body and the shoulder. In this case, the minor connector is the correct answer as it is the connecting element that joins the body and the shoulder.

The correct answer is "ពង្រីកផ្ទៃក្រោយ" which means "The posterior surface". This is the correct answer because an indirect retainer is a component of a removable partial denture that assists in preventing displacement of the denture base away from the supporting tissues. The posterior surface of the denture is the area that is located towards the back of the mouth, which is where the indirect retainer would be positioned.

The word "មុខល្អ" means "good" in English. It is the correct answer because it is the only option that does not refer to the size or shape of the direction. The other options "មុខមាត់តូច" (small size), "មុខមាត់ធំ" (big size), and "មុខវៀច" (shape) are not relevant to the direction being discussed.

Edentulous space refers to a space in the mouth that is missing teeth. The correct answer, "យកចេញ" (remove), indicates that the edentulous space is being taken out or removed.

The correct answer is "ជួសជុលរួច" (fasten securely). This answer is the most appropriate because it directly translates to "fasten securely" which is what a ring clasp is designed to do. It accurately describes the function of a ring clasp in securing and fastening jewelry items such as necklaces or bracelets.

The correct answer is "មិនអាចទប់នឹងទំងន់ផ្តេក" which means "Cannot be fastened to the length of the chain". This answer suggests that a ring clasp cannot be attached or secured to the end of the chain.

The correct answer is "ដាក់ដោះសំអាត". This means "to place it upside down". The other options do not accurately describe the action of placing the object upside down.

The minor connector is the correct answer because it connects the body of the partial denture to the shoulder. The minor connector is an important component of a removable partial denture as it provides stability and support to the prosthesis. It helps distribute the forces evenly and prevents displacement of the denture.

The open lattice type on a maxillary class I Removable Partial Denture does not cover the tuberosity. This type of denture design allows for better retention and stability by utilizing a framework that is not fully covered by acrylic. This design helps to minimize the bulk of the denture and allows for better distribution of forces during function. By not covering the tuberosity, the denture is able to engage the underlying bone and soft tissues more effectively, improving the overall fit and comfort for the patient.

The minor connector is a component of a dental prosthesis that connects the major connector to other parts of the prosthesis, such as the denture base and artificial teeth. In this case, the correct answer is "Major Connector" because it is the main connector that connects all the other components together.

The mandibular distal extension RPD extends up to the anterior 2/3 of the retro-molar pad. This means that the removable partial denture (RPD) extends to the area just behind the abutment teeth, covering approximately two-thirds of the retro-molar pad. This is important for providing stability and support to the RPD, as well as maintaining proper function and aesthetics for the patient.

An ideal clasp assembly should possess the quality of retention, which means it should securely hold the denture base, major connector, and minor connector in place. Retention is crucial for the stability and functionality of the clasp assembly, ensuring that the denture remains firmly attached to the supporting teeth or tissues. Without proper retention, the clasp assembly may become loose or dislodged, leading to discomfort, difficulty in eating or speaking, and potential damage to the denture or supporting structures. Therefore, retention is an essential quality for an ideal clasp assembly.

The approach arm of a bar clasp is the only flexible minor connector among the options given. This component connects the bar clasp to the major connector in a removable partial denture. The flexibility of the approach arm allows for movement and adjustment, providing a more comfortable fit for the patient.

Passive retention in removable partial dentures (RPDs) is provided by guiding planes. Guiding planes are inclined surfaces on the abutment teeth that help guide the insertion and removal of the RPD. They create a path of insertion and prevent the RPD from dislodging during function. Direct retainers, indirect retainers, and undercuts play different roles in RPDs but do not specifically provide passive retention.

Physiologic adjustment of the framework refers to the adaptation of the framework to the natural movements and forces exerted by the surrounding structures in the mouth. The axis of rotation is an important factor in this adjustment because it determines the direction and extent of movement that the framework can accommodate. By aligning the framework with the axis of rotation, the prosthesis can move more freely and comfortably, allowing for better function and stability. The other options, such as the areas of edentulous space, the number of abutments, and the external finish line, are not directly related to the physiologic adjustment of the framework.

In a class III modification 1 RPD, the rests are usually placed adjacent to the modification space. This means that the rests are positioned next to the area that has been modified or altered in the removable partial denture (RPD). Placing the rests in this location helps to provide stability and support to the RPD, as they help distribute the forces evenly across the remaining teeth and the edentulous area. By placing the rests adjacent to the modification space, the RPD can function effectively and comfortably for the patient.

When designing a removable partial denture (RPD) for a Kennedy class II arch, the clasp configuration usually employed is the tripod configuration. This configuration consists of two direct retainers on the abutment teeth and a reciprocal clasp on the opposite side of the arch. The tripod configuration provides stability and retention for the RPD, allowing it to effectively replace missing teeth in the Kennedy class II arch.

The correct answer is "ប្រឡោះធំទូលាយ" which means "Large intestine". This answer suggests that the part of the digestive system where no digestion occurs is the large intestine. The large intestine primarily absorbs water from the remaining indigestible food matter and turns it into solid waste known as feces. This process does not involve any further breakdown of nutrients or digestion.

The support for a RPD (Removable Partial Denture) is usually provided by both the teeth and the surrounding mucosa. The teeth provide stability and retention for the denture, while the mucosa provides additional support and helps distribute the forces evenly. Both factors are important in ensuring the RPD fits properly and functions effectively.

A unilateral edentulous area with natural teeth both anterior and posterior to it represents Kennedy's class III arch. In this type of arch, there is a single edentulous area located posterior to the remaining natural teeth.