A. Localised Shrinkage porosity
B. Gas inclusion porosity
C. Micro porosity
D. Surface porosity
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
The particle size in microfilled composites is_____________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Composite
B. Complex material
C. Combined
D. Compound
A. Amalgam
B. Silicate cement
C. Gold alloy
D. Acrylic resin
Co-efficient of thermal expansion is highest for_____________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Heat
B. Visible light
C. Chemicals
D. Lasers
The latest method of curing denture base resins______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins 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
A. To prevent the porosity
B. To prevent warpage
C. To prevent volume expansion
D. All of the above
To cure a heat cure resin, a proper heating cycle is necessary_____________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Increase the surface area
B. Permit chemical bonding between resin and enamel
C. Create surface irregularities in enamel for better mechanical retention of resin
D. Condition the tooth surface for better wetting
A. Glass ionomer restoratives
B. Hybrid resin composites
C. Microfilled resin composites
D. Macrofilled resin composites
A. Microfilled resin
B. Macrofilled resin
C. Hybrid
D. Light cure activated
Which of the following absorbs maximum amount of water ? Read More »
Dental Materials, Medical Mcqs, Restorative Resins