MDS PREP
"Guiding planes" relate to
1) Path of insertion
2) Means of retention
3) Extent of undercuts
4) Tilt of abutment teeth
Prosthodontics
Answer: 1
guiding planes are flat, polished surfaces on the abutment teeth that guide the RPD along a specific path during insertion and removal. They are located adjacent to the edentulous area and are crucial for the proper seating and function of the denture.
Uncontrolled diabetes poses a problem to prosthodontist as
1. More bone resorption
2. Increased salivary flow
3. Less bone resorption
4. Less tissue laxity
Prosthodontics
Answer: 1
Uncontrolled diabetes poses a problem to the prosthodontist as it leads to more bone resorption.
The primary advantage of an immediate denture is that
1. centric relation (CR) is easier to record
2. less ridge resorption occurs as the ridges are subjected to early function
3. the patients can continue with their social activities without any embarrassment
4. artificial teeth can be set in identical Positions as those occupied by the natural teeth
Prosthodontics
Answer: 3
The primary advantage of an immediate denture is that the patients can continue with their social activities without any embarrassment.
Patient education of complete dentures should start
1. At impression stage and end after processing of dentures
2. At time of initial appointment and continue throughout the treatment
3. At the time of denture delivery and subsequent appointments
4. None of the above
Prosthodontics
Answer: 2
Patient education of complete dentures should start at the time of the initial appointment and continue throughout the treatment.
When setting teeth for a complete denture in bilateral balanced occlusion, if
the incisal guidance is steep, the
1 occlusal plane should be shallow
2 compensating curve should be steep
3 cuspal inclines should be shallow
4 condylar guidance should be made steep
Prosthodontics
Answer: 2
Explanation: In bilateral balanced occlusion, if the incisal
guidance is steep, it is necessary to create a compensating curve that is also
steep to maintain balanced occlusion during lateral movements. This helps to
ensure that the occlusal contacts remain balanced and stable, preventing tipping
or dislodgment of the denture during function. The other options do not
adequately address the need for balance in occlusion.
How should the lingual extension of the mandibular impression be tested
1. By functional movements of the facial muscles
2. By vigorous extreme movements of the tongue
3. By functional movements of the tongue
4. All of the above
Prosthodontics
Answer: 3
The lingual extension of the mandibular impression should be tested by functional movements of the tongue.
A dental instrument which creates aerosols containing large number of microorganisms is the
1. Evacuator
2. Ultrasonic scaler
3. Amalgam condenser
4. Endodontic reamer
Prosthodontics
Answer: 2
A dental instrument which creates aerosols containing a large number of microorganisms is the ultrasonic scaler.
Centric jaw relation is made
1. At established vertical dimension
2. Before the vertical dimension is established
3. At a greater level than established vertical dimension
4. No relative to the vertical dimension
Prosthodontics
Answer: 1
Centric jaw relation is made at established vertical dimension.