MDS PREP
The amount of reduction required for a tooth for all metal crown restoration is
1) So that there is proper clearance between the teeth
2) So that the tooth architecture interferes with the arch of rotation
3) So that the tooth architecture does not interfere with the arch of rotation
4) At least 2 mm on all the surfaces
Prosthodontics
Answer: 2
Internal attachment for a partial denture is used
1) When restoring a palatal cleft
2) When abutment tooth has dental caries
3) When there is difficulty in getting clasp retention
4) When restoring lost vertical dimension
Prosthodontics
Answer: 3
When selecting the shade of the cement for cementing a porcelain jacket crown, the powder is tested for colour matching in
1) Cement liquid
2) Glycerin-water solution
3) Water only
4) Alcohol
Prosthodontics
Answer: 2
When loads are increased, tooth closing movements change into opening due to
1) Benett shift
2) Proprioceptive impulses from PD ligament
3) Group function of the teeth
4) Canine-guided occlusion
Prosthodontics
Answer: 2
Which of the following is not a determinant of occlusion for CD
1) Freeway space
2) Condylar inclination
3) Distance of the teeth from the condyle
4) Incisal guidance
Prosthodontics
Answer: 1
In an impression of the edentulous mandibular arch, all of the following anatomic landmarks will appear as depressions or grooves, except
1. retromolar pad
2. lingual tuberosity
3. lingual trenum
4. retromylohyoid space
Prosthodontics
Answer: 4
An overextended mandibular denture will be dislodged as a result of function of
1) Masseter
2) Temporalis
3) Buccinator
4) Lateral pterygoid
Prosthodontics
Answer: 1
Porcelain denture teeth
1. Have a higher coefficient of thermal expansion than acrylic teeth
2. Have a lower abrasion resistance than enamel
3. Should be used where the interalveolar clearance is small
4. Have a higher abrasion resistance than gold