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.Management Sciences
Category: Dental Materials
The deoxidizing agent added to dental alloys is______________?
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A. Palladium
B. Silver
C. Copper
D. Zinc
Advantage of minimum mercury technique or Eames technique is all Except________________?
A. High strength
B. Sets quickly
C. Needs no squeezing of excess mercury
D. Greater plasticity and adapts well to cavity walls
The % of free monomer in a heat – cured acrylic resin is_______________?
A. 3% to 5%
B. 8% to 10%
C. 0.2% to 0.5%
D. 0.6% to 0.8%
Dicor restoration is_______________?
A. Two coloured restorations
B. Heat pressed ceramics
C. Castabel ceramic
D. None of the above
Localised shrinkage porosity is seen when there________________?
A. Thin sprue
B. No reservoir
C. Investment heated strongly
D. Inadequate air discharge
The average life of silicate cement restoration is______________?
A. 2 years
B. 4 years
C. 6 years
D. 8 years
Which one of the following impression materials is elastic, sets by a chemical reaction and is catalyzed by chloroplatinic acid_______________?
A. Condensation silicone
B. Polyether
C. Polysulfide
D. Poly vinyl siloxane
Advantage of zinc containing amalgam is_______________?
A. Better handling property
B. Dimensional Stability
C. Resistance to creep
D. Toxicity to pulp and dentin
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