MDS PREP
Selective pressure impression technique indicated in
1. Firm healthy mucosal covering over the ridge
2. Flabby ridges
3. Knife edge with movable mucosa
4. When sharp bony spicules are present in the ridge
Prosthodontics
Answer: 1
Selective pressure impression technique is indicated in firm healthy mucosal covering over the ridge.
If the clasp assembly is not being placed on a tooth adjacent to an edentulous
area, the minor connector must
be positioned
1. in the embrasure between two teeth
2. on the lingual surface of the tooth distal to the edentulous space
3. on the lingual surface of the tooth mesial to the edentulous space
4. on any tooth with a convex lingual surface
Prosthodontics
Answer: 1
Explanation: The minor connector should be positioned in the embrasure between
two teeth to provide adequate support and stability for the clasp assembly. This
positioning helps distribute forces evenly and maintains the integrity of the
prosthesis. The other options do not provide the same level of support.
Retromolar pad
1. Should not be covered by low denture
2. Should be covered by lower denture
3. Has tendon of temporal muscle attached to it
4. All of the above
Prosthodontics
Answer: 2
The retromolar pad should be covered by the lower denture.
Finish lines of a complete coverage crown should be
1) Supragingivally
2) Subgingivally
3) Subgingivally if required
4) Gingival margin
Prosthodontics
Answer: 3
The finish line of a crown preparation can be placed supragingivally or subgingivally depending on the clinical situation. Subgingival finish lines may be necessary to achieve proper aesthetics, especially in cases where the margin needs to be hidden beneath the gingival tissue. However, it is important to avoid placing the finish line too far subgingivally, as this can complicate oral hygiene and lead to periodontal issues.
Chroma is
1. Intensity of colour
2. Translucency of enamel
3. Translucency of enamel and dentin
4. None of the above
Prosthodontics Answer: 1
Chroma refers to the purity or saturation of a
color, distinguishing it from its brightness (value) or hue. In dental
color-matching, chroma is an essential factor when selecting materials for
aesthetic restorations.
Excessive application of pressure on the posterior portion of the occlusal rim during jaw relations results in
1. Anterior open bite
2. Posterior open bite
3. Anterior deep bite
4. Unbalanced occlusion
Prosthodontics
Answer: 1
Excessive application of pressure on the posterior portion of the occlusal rim during jaw relations results in an anterior open bite.
Closest speaking space in normal jaw relations is approximately
1. 0 to 1.5 mm
2. 1.5 to 3 mm
3. 3 to 6 mm
4. 6 to 9 mm
Prosthodontics
Answer: 2
Closest speaking space in normal jaw relations is approximately 1.5 to 3 mm.
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.