MDS PREP
Primary stress bearing area in mandibular edentulous ridge is
1. Buccal shelf
2. Crest of the ridge
3. Retromolar pad
4. Lingual flange
Prosthodontics
Answer: 1
The primary stress-bearing area in the mandibular edentulous ridge is the buccal shelf.
What is the established vertical dimension freeway space in millimeters?
1. 5-6
2. 1-3
3. 2-4
4. 6-8
Prosthodontics
Answer: 3
The established vertical dimension freeway space in millimeters is 2-4.
The modiolus exerts its influence at canine and premolar region of complete dentures. Modiolus is formed by all of the following muscles except
1. Triangularis
2. Buccinator
3. Masseter
4. Orbicularis oris
Prosthodontics
Answer: 3
The modiolus exerts its influence at the canine and premolar region of complete dentures. Modiolus is formed by all of the following muscles except masseter.
Distal end of the complete denture should be
1. On the vibrating line
2. 1-2 mm posterior to vibrating line
3. 1-2 mm anterior to the vibrating line
4. Should be always on the hard palate
Prosthodontics
Answer: 2
The distal end of the complete denture should be 1-2 mm posterior to the vibrating line.
The following property of saliva affects denture retention
1. Quality and quantity of serous and mucus saliva
2. Quantity of mixed saliva
3. Quantity of only serous saliva
4. Both A and C
The property of saliva that affects denture retention is both quality and quantity of serous and mucus saliva.
The direction of the resorption of the maxillary ridge
1. Downwards and buccally
2. Upwards and lingually
3. Downwards and lingually
4. Upwards and buccally
Prosthodontics
Answer: 2
The direction of the resorption of the maxillary ridge is upwards and lingually.
If palatel seal is placed too deep, it may result in
1. Improper phonetics
2. Gagging sensation
3. Improper seating of the denture
4. Retention increases with depth
Prosthodontics
Answer: 3
If the palatal seal is placed too deep, it may result in improper phonetics.
Surveyor helps in all of the following except
1) Determination of the clasp placement
2) Determination of the guiding planes
3) Determination of the support to the RPD
4) Determination of placement of the major connector
Prosthodontics
Answer: 3
A surveyor is a device used in the fabrication of removable partial dentures (RPDs) to assess and establish the path of insertion and removal. It is primarily involved in determining the guiding planes and the placement of the major connector and retentive elements like rests and minor connectors. It does not directly assess the support provided by the underlying tissues to the RPD, which is influenced by factors such as the edentulous ridge contour and the type of RPD design.