MDS PREP
Lateral throat form occupied by retromylohoid flange in lower denture
1) Has nothing to do with the denture
2) Should be large, one-half inch
3) Should be small, less than half inch
4) Should be larger, more than 2 inches
Prosthodontics
Answer: 2
The retromylohyoid area is an important anatomical region in the lower denture that contributes to the retention and stability of the denture. The lateral throat form, which is the space between the retromylohyoid flange and the surrounding tissues, should be adequately large (approximately one-half inch) to allow for proper function and comfort of the denture. A well-formed lateral throat area helps in achieving a good seal and prevents food impaction.
Which of the following surveyors has a swiveling horizontal arm?
1) Ney surveyor
2) Jelenko surveyor
3) Williams surveyor
4) Therma-sculpt surveyor
Prosthodontics
Answer: 2
The Jelenko surveyor is noted for its swiveling horizontal arm, which allows for greater flexibility in surveying the cast compared to other types.
Muscles involved in centric relation
1. Temporalis and masseter
2. Medial and lateral pterygoids
3. Temporalis and lateral pterygoid
4. None of the above
Prosthodontics
Answer: 1
Muscles involved in centric relation are temporalis and masseter.
The aesthetics of the artificial denture begins with
1. Examination and diagnosis
2. Impressions
3. Wax records
4. Trial in stage
Prosthodontics
Answer: 1
The aesthetics of the artificial denture begins with examination and diagnosis.
Custom tray is better than stock tray for impression (of crown) due to following reasons except
1. Custom tray is eary to adapt
2. Stock tray may not record full flange
3. Custom tray is cheaper
4. Stock tray can distort easily
Prosthodontics
Answer: 3
Custom tray is better than stock tray for impression (of crown) due to the reason that stock tray may not record full flange.
When making peripheral seal for mandibular denture, patient notices that the impression is rising when the patient opens his mouth. It indicates
1. Overextension of the labial and lingual surfaces
2. Overextension of the labial and buccal surfaces
3. Overextension of the lingual surfaces
4. Underextension of the lingual surfaces
Prosthodontics
Answer: 2
When making peripheral seal for mandibular denture, if the impression is rising when the patient opens his mouth, it indicates overextension of the labial and buccal surfaces.
Treatment of choice for a patient with a maxillary complete denture with severe bilateral tuberosity undercuts
1. Remove both tuberosity undercuts
2. Remove the tissue on only one side if possible
3. Maintain the undercuts as they help in retention
4. Use an mucostatic impression material
Prosthodontics
Answer: 2
Treatment of choice for a patient with a maxillary complete denture with severe bilateral tuberosity undercuts is to remove the tissue on only one side if possible.
Muscle which hasf influence on the formation of buccal frenum of maxilla
1. Levator anguli oris
2. Quardratus labli superioris
3. Triangularis
4. Inferiors
Prosthodontics
Answer: 1
The muscle which has influence on the formation of the buccal frenum of the maxilla is levator anguli oris.