MDS PREP
Which of the following is NOT a component of a dental surveyor?
1) Base
2) Vertical arm
3) Toothbrush holder
4) Surveying arm
Prosthodontics
Answer: 3
A dental surveyor consists of components like a base, vertical arm, horizontal arm, and surveying arm, but it does not include a toothbrush holder.
Mention the blood supply to the flap that has been used to close an oro antral fistula in the area of tooth
1. Nasopalatine
2. Greater palatine
3. Posterior superior alveolar
4. Facial
The blood supply to the flap that has been used to close an oroantral fistula in the area of tooth is greater palatine.
A maxillary alginate impression is removed with a quick jerk to prevent
1. Syneresis
2. Permanent deformation
3. Elastic deformation
4. Surface details
Prosthodontics
Answer: 2
A maxillary alginate impression is removed with a quick jerk to prevent permanent deformation.
The concept of occlusion that maintains that the anteroposterior plane of occlusion should be parallel with the denture foundation and not dictated by the horizontal condylar guidance is called
1. Lingualised concept
2. Balanced concept
3. Neutrocentric concept
4. Mutually protected concept
Prosthodontics
Answer: 3
The neutrocentric concept of occlusion emphasizes that the occlusal plane should be parallel to the denture foundation and not influenced by the horizontal condylar guidance. This approach aims to achieve a more stable occlusion by focusing on the relationship between the occlusal plane and the supporting structures.
Effective alternation in the abutment with short clinical crowns for proper clasp retention can be achieved by
1) Proper guiding planes
2) Restoring with full crown
3) Altering the height of contour
4) All of the above
Prosthodontics
Answer: 2
When dealing with short clinical crowns in RPD abutment teeth, restoring the teeth with full crowns can provide additional retentive surfaces and support for the clasp. This can be particularly useful when the available undercuts are limited, thereby enhancing the overall stability and retention of the prosthesis.
Any tooth that supports a fixed or a re movable prosthesis, is termed
1. a bridge
2. an abutment
3. a retainer
4. a pontic
Prosthodontics
Answer: 2
An abutment is a tooth or implant that provides support for a fixed or removable prosthesis. It is crucial for the stability and retention of the prosthetic device.
Only pure hinge movements of the mandible occur at
1. Centric occlusion
2. Centric relation
3. Lateral occlusion
4. Terminal hinge position
Prosthodontics
Answer: 4
Only pure hinge movements of the mandible occur at terminal hinge position.
The thickness of the spacer used in spicial tray is
1. 2.5 mm
2. 2.0 mm
3. 1.5 mm
4. 1.0 mm
Prosthodontics
Answer: 2
The thickness of the spacer used in a special tray is 2.0 mm.