Prosthodontics Quiz: Trivia Exam!
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Questions and Answers
- 1.
Beading of the rigid major connector is done to?
- A.
Increased rigidity
- B.
Producing a positive contact with tissue
- C.
Improve aesthetics
- D.
All
Correct Answer
B. Producing a positive contact with tissueExplanation
Beading of the rigid major connector is done to produce a positive contact with tissue. This means that the beading helps to ensure that the major connector fits snugly against the tissue, creating a secure and comfortable fit. This is important for the overall function and success of the dental prosthesis. Additionally, the beading can also help to improve aesthetics by blending the major connector with the surrounding tissues, creating a more natural appearance. Finally, the beading also contributes to increased rigidity, which further enhances the stability and durability of the prosthesis.Rate this question:
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- 2.
The first step in surveying is?
- A.
Establish guiding planes
- B.
Establish retentive areas
- C.
Establish interferences
- D.
All
Correct Answer
A. Establish guiding planesExplanation
Establishing guiding planes is the first step in surveying. Guiding planes are reference surfaces or lines that are established to guide the placement and design of restorations or prostheses. They provide a stable and accurate foundation for the restorative work by ensuring proper alignment, stability, and support. By establishing guiding planes, the surveyor can determine the ideal path of insertion and removal for the restoration, which is crucial for its success. This step helps in achieving accurate and predictable results in the subsequent stages of the surveying process.Rate this question:
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- 3.
Effective means of limiting applied loads to abutment teeth in distal extension partial denture is by?
- A.
Use a stress breaker
- B.
Splinting abutments to adjacent teeth
- C.
Maintaining a stable base-tissue relationship
- D.
All
Correct Answer
C. Maintaining a stable base-tissue relationshipExplanation
Maintaining a stable base-tissue relationship is an effective means of limiting applied loads to abutment teeth in distal extension partial dentures. This is because a stable base-tissue relationship ensures proper distribution of forces and reduces the stress on individual abutment teeth. By providing support and stability to the denture, the base-tissue relationship helps prevent excessive forces from being concentrated on specific teeth, which can lead to damage or discomfort. Therefore, maintaining a stable base-tissue relationship is crucial for protecting abutment teeth and ensuring the longevity and functionality of the partial denture.Rate this question:
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- 4.
To make an Impression of flabby tissue?
- A.
Use wax impression material
- B.
Use heavy body poly sulphide
- C.
Assure intimate contact with tissue
- D.
None
Correct Answer
C. Assure intimate contact with tissueExplanation
Assuring intimate contact with tissue is necessary to make an impression of flabby tissue. This means that the impression material should come into direct contact with the tissue to accurately capture its shape and details. This ensures that the final impression is a true representation of the flabby tissue, allowing for accurate diagnosis and treatment planning.Rate this question:
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- 5.
The unilateral edentulous area located to posterior to the remaining natural teeth is?
- A.
Kennedy class I
- B.
Kennedy class II
- C.
Kennedy classIII
- D.
None
Correct Answer
B. Kennedy class IIExplanation
Kennedy class II is the correct answer because it refers to a unilateral edentulous area located posterior to the remaining natural teeth, with the presence of missing teeth on both sides of the arch. In this classification, the edentulous area is bounded anteriorly by the remaining natural teeth and posteriorly by the edentulous area. This classification helps in determining the appropriate treatment plan for the patient, including the design of a removable partial denture.Rate this question:
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- 6.
Part of RPD which assists direct retainers protecting displacement of distal extension denture bases is:
- A.
Minor connectors
- B.
Major connectors
- C.
Indirect retainers
- D.
Occlusal rest
Correct Answer
C. Indirect retainersExplanation
Indirect retainers are a part of the removable partial denture (RPD) that helps in protecting against the displacement of distal extension denture bases. They are designed to resist the rotational forces that can occur during functional movements of the denture. By providing stability and support to the RPD, indirect retainers prevent the distal extension denture bases from moving or tipping under occlusal forces. This helps in maintaining the proper fit and function of the denture, ensuring patient comfort and preventing damage to the oral tissues.Rate this question:
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- 7.
Palatal strap major connector is used in?
- A.
Unilateral distal extension partial denture
- B.
Bilateral short span edentulous spaces in kennnedy class III
- C.
Either
- D.
None
Correct Answer
C. EitherExplanation
The palatal strap major connector is used in both unilateral distal extension partial dentures and bilateral short span edentulous spaces in Kennedy class III. This major connector design provides stability and support to the partial denture by connecting the posterior teeth on both sides of the arch. It helps distribute the occlusal forces evenly and prevents rotation or movement of the denture. The palatal strap major connector is versatile and can be used in different clinical situations depending on the specific needs of the patient.Rate this question:
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- 8.
The major connector used when anterior teeth to be replaced?
- A.
Palatal bar
- B.
Palatal strap
- C.
Horse shoe connector
- D.
None
Correct Answer
C. Horse shoe connectorExplanation
The horse shoe connector is the correct answer because it is a major connector used when anterior teeth need to be replaced. This type of connector is horseshoe-shaped and is designed to provide support and stability for the prosthetic teeth. It is commonly used in cases where there are missing teeth in the anterior region of the mouth. The horse shoe connector allows for proper distribution of forces and provides a comfortable fit for the patient.Rate this question:
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- 9.
Mandibular major connector with half pear-shaped cross-section?
- A.
Lingual plate
- B.
Lingual bar
- C.
Double lingual bar
- D.
None
Correct Answer
B. Lingual barExplanation
A mandibular major connector with a half pear-shaped cross-section is known as a lingual bar. This type of major connector is used in partial dentures to provide stability and support to the prosthesis. The lingual bar is designed to rest on the lingual surface of the mandibular teeth and is shaped like a half pear, with the wider end towards the anterior region of the mouth. It helps distribute the forces evenly and prevents displacement of the denture during function.Rate this question:
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- 10.
The mandibular major connector used in case of large inter proximal embrasures requiring indirect retention?
- A.
Labial bar
- B.
Cingulum bar
- C.
Double lingual bar
- D.
None
Correct Answer
B. Cingulum barExplanation
In cases where there are large interproximal embrasures requiring indirect retention, a cingulum bar is used as the mandibular major connector. The cingulum bar is a type of major connector that is placed on the lingual surface of the mandibular anterior teeth. It provides stability and support to the removable partial denture by engaging the lingual undercuts and preventing displacement of the denture. This is particularly important in cases where there are large interproximal spaces, as it helps to distribute the forces evenly and maintain the stability of the denture.Rate this question:
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- 11.
Minor connectors that support auxiliary rests should arise from the major connector at?
- A.
Acute angle
- B.
Obtuse angle
- C.
Right angle
- D.
None
Correct Answer
C. Right angleExplanation
Minor connectors that support auxiliary rests should arise from the major connector at a right angle. This is because a right angle provides the most stable and secure connection between the major and minor connectors, ensuring proper support for the auxiliary rests. A right angle allows for better distribution of forces and minimizes the risk of dislodgement or movement of the auxiliary rests.Rate this question:
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- 12.
Minor connectors that support auxiliary rests are in?
- A.
Circular in cross section
- B.
Triangular cross section
- C.
Either
- D.
None
Correct Answer
B. Triangular cross sectionExplanation
The minor connectors that support auxiliary rests are in a triangular cross section. This means that they have a shape that resembles a triangle when viewed from a cross-sectional perspective. This type of cross section provides stability and strength to the connectors, allowing them to effectively support the auxiliary rests. Circular cross sections may not provide the same level of stability, while the option of "either" suggests that both circular and triangular cross sections could be used, but the correct answer specifies triangular cross section.Rate this question:
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- 13.
A rigid stabilizing extension of a removable partial denture which contacts remaining teeth to dissipate vertical forces is
- A.
Indirect retainer
- B.
Occlusal rest
- C.
Direct retainer
- D.
None
Correct Answer
B. Occlusal restExplanation
An occlusal rest is a component of a removable partial denture that provides stability and support by contacting the remaining teeth and distributing vertical forces. It helps to prevent the denture from moving or dislodging during biting and chewing. This component is designed to bear the load of occlusal forces and transfer them to the supporting teeth, providing stability and preventing damage to the remaining teeth.Rate this question:
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- 14.
Occlusal rest should ideally measure?
- A.
1/3 rd buccolingual width
- B.
1/2 of buccolingual width
- C.
Either
- D.
None
Correct Answer
B. 1/2 of buccolingual widthExplanation
The occlusal rest should ideally measure 1/2 of the buccolingual width. This means that the occlusal rest should be approximately half the width of the tooth from the buccal (cheek) to the lingual (tongue) side. This measurement is important for providing proper support and stability for a dental prosthesis or restoration. By having a rest that is half the buccolingual width, it ensures that there is enough surface area for the restoration to securely fit and distribute forces evenly during occlusion.Rate this question:
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- 15.
Cingulum rest can not be prepared in?
- A.
Maxillary teeth
- B.
Mandibular teeth
- C.
Can be prepared in both
- D.
None
Correct Answer
B. Mandibular teethExplanation
Cingulum rest is a type of rest preparation that involves removing the lingual surface of a tooth to create a rest seat. This rest can only be prepared on the maxillary teeth, specifically on the lingual surface of the anterior teeth. It cannot be prepared on the mandibular teeth because they do not have a prominent lingual surface like the maxillary teeth. Therefore, the correct answer is "Mandibular teeth."Rate this question:
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- 16.
The apex of the rest seat in the incisal rest seat points towards the long axis?
- A.
Mesiodistally
- B.
Buccolingually
- C.
Either
- D.
None
Correct Answer
A. MesiodistallyExplanation
The correct answer is "Mesiodistally" because the apex of the rest seat in the incisal rest seat should point towards the long axis of the tooth in the mesiodistal direction. This ensures that the force applied to the tooth is distributed evenly along its long axis, providing stability and support for the dental prosthesis.Rate this question:
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- 17.
A flexible third of the clasp is located in?
- A.
Above the height of contour
- B.
Below the height of contour
- C.
At height of contour
- D.
None
Correct Answer
B. Below the height of contourExplanation
The flexible third of the clasp is located below the height of contour. This means that it is positioned in such a way that it rests below the area where the natural teeth emerge from the gumline. This positioning allows the clasp to provide support and stability to the dental prosthesis without interfering with the natural teeth or causing discomfort to the patient.Rate this question:
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- 18.
When retentive undercut on abutment teeth is located adjacent to edentulous space?
- A.
Reverse clasp
- B.
Circlet clasp
- C.
Both
- D.
None
Correct Answer
C. BothExplanation
When a retentive undercut on abutment teeth is located adjacent to an edentulous space, both a reverse clasp and a circlet clasp can be used. A reverse clasp is used when the undercut is located on the distal surface of the abutment tooth, while a circlet clasp is used when the undercut is located on the mesial surface. Therefore, in this specific scenario, both types of clasps can be utilized.Rate this question:
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- 19.
The reciprocal arm is?
- A.
Rigid and placed in middle 3rd of crown
- B.
Flexible and placed in occlusal third
- C.
Rigid and incisal third
- D.
None
Correct Answer
A. Rigid and placed in middle 3rd of crownExplanation
The reciprocal arm is rigid and placed in the middle third of the crown. This means that the arm is not flexible and is securely attached to the crown in the middle portion. This placement allows for stability and support when the prosthesis is in use.Rate this question:
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- 20.
Bar clasp approaches the under cut?
- A.
Mesially
- B.
Distally
- C.
Gingivally
- D.
None
Correct Answer
C. GingivallyExplanation
The correct answer is "Gingivally" because when a bar clasp approaches an undercut, it moves towards the gingiva or the gum tissue. This is because the undercut is located on the tooth surface, closer to the gum line. Therefore, the bar clasp would need to move in a gingival direction in order to engage with the undercut and provide proper support and retention for a dental prosthesis.Rate this question:
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- 21.
The horizontal arm is fixed in?
- A.
Will's surveyor
- B.
Ney surveyor
- C.
Jelenko surveyor
- D.
All
Correct Answer
B. Ney surveyorExplanation
The correct answer is "Ney surveyor" because the question is asking about the horizontal arm, which indicates a specific type or brand of surveyor equipment. Therefore, the correct answer would be the specific brand or type mentioned, which is "Ney surveyor."Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Sep 12, 2018Quiz Created by
Ismayilpkn4
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