MDS PREP
Of the four factors affecting balanced occlusion in complete dentures, which of the following can be altered by only a slight amount because of wide limitations of esthetics and physiologic factors?
1. Condylar inclinations
2. Compensating curve
3. Incisal guidance
4. Cuspal inclinations
Prosthodontics
Answer: 3
Of the four factors affecting balanced occlusion in complete dentures, which of the following can be altered by only a slight amount: incisal guidance.
Occlusal rims are also called
1. Dummy dentures
2. Trial dentures
3. Immediate dentures
4. Overdentures
Prosthodontics
Answer: 1
Occlusal rims are also called dummy dentures.
All of the following landmarks are included while making a postdam for maxillary arch except
1. Pterygomaxillary notch
2. Hamular process
3. Fovea palatina
4. Vibrating line
Prosthodontics
Answer: 2
All of the following landmarks are included while making a postdam for maxillary arch except hamular process.
The primary advantage of implant supported prosthesis is
1. decreased bulk of the prosthesis
2. improved phonetics
3. maintenance of alveolar bone
4. improved proprioception
Prosthodontics
Answer: 3
Explanation: Implant-supported prostheses have the advantage of maintaining
alveolar bone due to osseointegration. This helps preserve the natural bone
structure and reduces the risk of bone resorption that is common with
traditional complete dentures, which can lead to changes in the patient's facial
profile over time.
The first step in surveying the casts for RPD is
1) Establishment of guiding planes
2) Establishment of undercuts for retention
3) Establishment of tooth contour for aesthetics
4) None of the above
Prosthodontics
Answer: 1
The initial step in surveying casts for an RPD is the establishment of guiding planes. These planes are essential for determining the path of insertion and removal of the denture, which in turn affects the overall stability and function of the prosthesis. Once the guiding planes are established, other steps such as identifying undercuts for retention and aesthetic considerations can be addressed.
The primary function of the compensating curve, incorporated in complete
dentures, is to provide
1 stability in centric relation
2. balanced occlusion during lateral movements of the mandible
3 an esthetically pleasing denture
4. balancing occlusal contacts during protrusive movements
Prosthodontics
Answer: 4
Explanation: The compensating curve is designed to ensure
that occlusal contacts are balanced during protrusive movements, which is
essential for maintaining stability and function of the complete denture. This
curve helps to distribute occlusal forces evenly and prevents tipping or
dislodgment of the denture during functional movements. The other options do not
accurately reflect the primary purpose of the compensating curve.
The distal termination of the posterior lower teeth in complete denture should be at
1. Mesial end of the retromolar pad
2. Distal end of the retromolar pad
3. 1/3rd the distance of the retromolar pad
4. 2/3rd the distance of the retromolar pad
Prosthodontics
Answer: 1
The distal termination of the posterior lower teeth in complete denture should be at the mesial end of the retromolar pad.
Internal resorption in a tooth is seen as
1. Calcium hydroxide pulpotomy
2. Replacement resorption
3. Non-proliferation lesion
4. Desensitizing tooth
Prosthodontics
Answer: 3
Internal resorption in a tooth is seen as a non-proliferation lesion.