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.Management Sciences
Category: Dental Materials
The best fuel gas when used with oxygen is______________?
A. Hydrogen
B. Natural gas
C. Propane
D. Acetylene
Green strength with reference to plaster means_____________?
A. Dry strength
B. Compressive strength
C. Strength of dental stone due to green colour
D. The wet strength
Impression compound has which of the following characteristic property ?
A. Low thermal conductivity
B. High flow property
C. Degradation is presence of moisture
D. Remain distortion free up to 72 hrs. pouring can be safely delayed
Silicate cement is indicated in________________?
A. Mouth breathers
B. Patients with high caries index
C. In the restoration of posterior tooth
D. None of the above
To prevent porosity in self-cure acrylic resin, curing should be carried in______________?
A. Cold water
B. Hot water
C. Under tap water
D. Under vacuum pressure
The tarnished layer of silver amalgam consists of________________?
A. Sulphides of silver
B. Oxides of tin
C. Chlorides of tin
D. All of the above
Maxwell – Voigt Model is to determine________________?
A. Elastic Behaviour
B. Plastic Behaviour
C. Viscoelastic Behaviour
D. All of the above
What is the disadvantage of using composites as restorative material ?
A. Increased thermal conductivity
B. Decreased wear resistance
C. Decreased thermal conductivity
D. None of the above
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