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.Management Sciences
Category: Restorative Resins
Co-efficient of thermal expansion is highest for_____________?
A. Amalgam
B. Silicate cement
C. Gold alloy
D. Acrylic resin
If curing occurs at temperature more than 100°C porosity results in which area of denture______________?
1. Hard thick central area
2. Thin Palatal area
3. Thin area of flanges
4. Porosity is uniformly distributed
In heat cure denture base acrylic resins the monomer is___________?
1. Methacrylate
2. Ethylmethacrylate
3. Methyl ethyl methacrylate
4. Polymethylmethacrylate
Cold cure acrylic expand in water by___________?
A. 1% by volume 0.23% by weight
B. 10% by volume 0.23% by weight
C. 0.1% by volume 0.23% by weight
D. None of the above
The latest method of curing denture base resins______________?
A. Heat
B. Visible light
C. Chemicals
D. Lasers
The advantage of unfilled methyl methacrylate is that______________?
A. It can be finished smoothly
B. It has a low degree of flow
C. It’s non-irritation to pulp
D. It’s wear resistant is high
In self-cure acrylic resin, activator is_____________?
A. Toluidine
B. Quaternary ammonium compound
C. Benzoyl peroxide
D. Tertiary amine
Quartz tungsten light cure device minimum output of energy should not be less than_____________?
A. 300 mw/sm2
B. 350 mw/cm2
C. 400 mw/cm2
D. 450 mw/cm2
The polymerization of self-curing resin takes faster in______________?
A. Cold water
B. Hot water
C. Under pressure
D. In vaccum
The type of spatula used to mix composite is________________?
A. Plastic
B. Stainless steel
C. Iron
D. None of the above
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