MDS PREP
A maxillary alginate impression is removed with a quick jerk to prevent
1) Syneresis
2) Permanent deformation
3) Elastic deformation
4) Surface details
Prosthodontics
Answer: 2
In constructing an anterior fixed partial denture with multiple adjacent pontics, facial embrasures are reduced in size to enhance
1) Aesthetics
2) Cleansability
3) Proper tissue health
4) All of the above
Prosthodontics
Answer: 1
When the height and taper of the preparation are same, which of the following provides better resistance
1) Large diameter molar
2) Small diameter molar
3) Large diameter premolar
4) Small diameter premolar
Prosthodontics
Answer: 4
All of the following are considered determinental during cementation of the cast restoration except
1) Debridement of the tooth with 3 % hydrogen peroxide
2) Rapid mix of the cement
3) Presence of moisture in the crevice
4) Drying of the tooth with hot air
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