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.Management Sciences
Category: Dental Materials
By product of condensation reaction between silicone base and alkyl silicate in presence of tin octate_______________?
A. Ethyl alcohol
B. Glycol
C. Acetate
D. Propanolol
Inlay wax is used to_______________?
A. Temporarily cement inlays:
B. Make inlay wax patterns
C. Invest inlay patterns
D. Box models
The function of the coupling agent in a restorative resin is to allow______________?
A. Adhesion of resin particles
B. Bonding between filler crystals
C. Bonding between filler and resin
D. Bonding between tooth and resin
A fluid having constant viscosity that does not depend upon the strain rate is said to be_______________?
A. Viscoelastic
B. Pseudoplastic
C. Plastic
D. Newtonian
Best impression material to be used for securing impression after crown preparation_______________?
A. Alginate
B. Agar
C. Elastome
D. Zno paste
When Gold fused with porcelain is fired at very high temperature greenish discoloration of cervical margin is due to________________?
A. High firing temperature
B. Disintegration of opaque layer
C. Presence of copper
D. Formation of excess oxides
Which one of the following is most elastic ?
A. a titanium
B. B titanium
C. Chrome-cobalt-nickel
D. Nickel-titanium
No trail closure is necessary with which one of the technique during denture fabrication_____________?
A. Compression moulding technique
B. Injection moulding technique
C. Fluid resin technique
D. Light cured technique
Who was the first person to introduce cast inlay restoration into dentistry ?
A. William H Taggart
B. Buonocore
C. G.V. Black
D. Bowen
Which of the following show chemical bond with enamel (Calcified tissues)______________?
A. Composites
B. Direct filling resins
C. Polycarboxylate cements
D. BIS-GMA resins in pit and fissure sealants
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