Medical MCQs

5099 MCQs  (Page 48 of 510)

Composite has_______________?
A. Resin
B. Filler
C. Resin & filler
D. None
Boiling point of methyl methacrylate________________?
A. B.p of water
B. < b.p of water
C. Equal of bp of water
D. Is at normal room temperature
Which of the following is present in the powder of the acrylic resin______________?
A. Methyl methacrylate
B. Benzoyl peroxide
C. Hydroquinone
D. D-methyl paratolouidine
One of the claims for the superiority composite resin restoration over silicate cement restorations is that the resin restorations_____________?
A. Prevent galvanic action
B. Are practically insoluble in oral fluids
C. Adapt to the walls of the cavity better
D. Have a higher coefficient of thermal expansion
Co-efficient of thermal expansion is highest for_____________?
A. Amalgam
B. Silicate cement
C. Gold alloy
D. Acrylic resin
The particle size in microfilled composites is_____________?
A. 0.05 to 0.04mm
B. 0.5 to 1.0 microns
C. 0.01 to 0.1 microns
D. 0.3 to 0.4mm
Porosity of denture base is due to_______________?
A. Packing at dough stage
B. Curing at 160°f for 9 hrs
C. Inadequate pressure
D. All of the above