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.Management Sciences
Category: Dental Materials
Space lattice refers to_______________?
A. Inter atomic movement
B. Inter atomic imbalance
C. Arrangement of atoms
D. Arrangement of molecules
Which of the following characterizes the silicate cement______________?
A. It is pulpal irritant
B. It is highly cariogenic
C. Chemically attaches to the tooth structure
D. It produces thinnest film surface
Tublulence of molten gold is due to _____________?
A. Impurities in gold
B. Improper venting
C. A and B
D. None of the above
Porcelain is best fired__________________?
A. In open air
B. Under air compression
C. When several layer are fired simultaneously
D. Under minimum pressure
Which of the following is correct arrangement of impression material regarding linear contraction in ascending order ?
A. Addition silicone < polyether < polysulfide < condensation silicone
B. Addition silicone < polysulfide < Polyether < condensation silicone
C. condensation silicone < polyether < polysulfide < Addition silicone
D. condensation silicone < polysulfide < polyether < Addition silicone
Absorption of mercury in the human body occurs least from_____________?
A. Lungs
B. Gastro-intestinal Track
C. Skin
D. Kidneys
The forces that hold atoms together are called_____________?
A. Primary forces
B. Secondary forces
C. Cohesive forces
D. Ionic forces
The hygroscopic technique is associated with______________?
A. Investment
B. Hydrocolloids
C. Amalgam
D. Silicate
Which of the following cements is most irritant to pulpal tissues ?
A. Zinc phosphate
B. Silicate
C. Glass ionomer
D. Polycarboxylate
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