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.Management Sciences
Category: Dental Materials
Which of the following is used as surface hardener in Impression material ?
0
A. 2% Potassium sulfate
B. 0.2% Potassium sulfate
C. 2% sodium sulfate
D. 4% Potassium sulfate
A material which partially transmits light & partially scatters it________________?
A. Reflector
B. Translucent
C. Transparent
D. Opaque
Lenolin is added is ZOE paste to______________?
A. Decrease flow
B. Increase flow
C. Accelerate reaction
D. Decrease irritation due to eugenol
Hydrocolloid material, show all except______________?
A. Hysterisis
B. Imbibition
C. Recrytallisation
D. Syneresis
The restoration which shows percolation and shrinkage along the margins is_____________?
A. Composites
B. Unfilled resins
C. Amalgam
D. Polycarboxylate
The base constituents of dental waxes come from three main sources except______________?
A. Animal
B. Mineral
C. Insect
D. Vegetable
The ability of an alloy to withstand mechanical stresses without permanent deformation is reflected by its______________?
A. Resilience
B. Elastic limit / Elastic strain
C. Hardness
D. Fatigue resistance
Silver plated dyes use an electrolytic bath of_______________?
A. Silver fluorides
B. Silver cyanide
C. Silver bromide
D. Silver iodide
Water powder ratio of dental stone and plaster is respectively_________________?
A. 0.28 and 0.6
B. 0.6 and 0.28
C. 0.6 and 3.2
D. 0.28 and 0.98
Indium in metal alloys_______________?
A. Improve bonding
B. Harden the metal ceramic Ag-Pd alloy
C. Both A and B
D. None of the above
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