A. Low compressive strength
B. High abrasive resistance
C. High water absorption
D. High polymerization shrinkage
Composite resins in comparison to acrylic have_______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Poor colour stability
B. Less polymerization shrinkage
C. Increase in vertical dimension
D. Decrease in vertical dimension
A. Zinc oxide
B. Methyl methacrylate
C. Phosphoric acid
D. Eugenol
The chemical used to etch enamel is_______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Addition of grain refining agents
B. Addition of difunctional monomers
C. Increasing the amount of heat required for linear polymerization
D. Incorporation of terminating agents
A. Should be held at a millimeter distance from the restoration
B. Need no protection while in use
C. Will cure composite upto a depth of 5 millimeter thickness
D. Is fiber optic
For photo-curing the composite resin the light source______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Toluidine
B. Quaternary ammonium compound
C. Benzoyl peroxide
D. Tertiary amine
In self-cure acrylic resin, activator is_____________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Amalgam alloy
B. Unfilled resin
C. Composite resin
D. Direct filling gold
A. 1925
B. 1937
C. 1951
D. 1956
Acrylic resins were first introduced as a denture base material in______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Increased thermal conductivity
B. Decreased wear resistance
C. Decreased thermal conductivity
D. None of the above
What is the disadvantage of using composites as restorative material ? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. 3% to 5%
B. 8% to 10%
C. 0.2% to 0.5%
D. 0.6% to 0.8%
The % of free monomer in a heat – cured acrylic resin is_______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins