Medical MCQs

5099 MCQs  (Page 83 of 510)

Tear strength for impression material is highest for__________?
A. Condensation silicone
B. Alginate
C. Polysulfide
D. Addition silicone
Elastomers are_________________?
A. Alginate
B. Agar
C. Polyethers
D. Imp. compound
Which of the following impression material is elastic________________?
A. Impression compound
B. Zinc oxide eugenol (zoe) paste
C. Wax
D. Polyvinyl siloxane
Impression techniques are used for recording________________?
A. Oral mucosal tissues
B. Dental hard tissues
C. Oral mucosal tissues and dental hard tissues
D. None of the above
Vulcanization refers to the setting of__________________?
A. Reversible hydrocolloid
B. Mercaptan impression material
C. Zinc phosphate cement
D. Zinc oxide-eugenol
Impression plaster is_____________?
A. Less compressive than alginate
B. More compressive than alginate
C. As compressive as alginate
D. More compressive than hydrocolloids
Setting time of ZOE is best controlled by______________?
A. Adding a drop of eugenol
B. Adding a drop of water
C. Cooling the glass slab
D. Altering ratio of two pastes
Sol – gel transformation is seen in________________?
A. Impression plaster
B. Hydrocolloids
C. Elastomer
D. Impression compound