A material which is a mixture of two different materials and its properties are_____________?
A. Composite
B. Complex material
C. Combined
D. Compound
Restorative Resins
Co-efficient of thermal expansion is highest for_____________?
Co-efficient of thermal expansion is highest for_____________?
A. Amalgam
B. Silicate cement
C. Gold alloy
D. Acrylic resin
The latest method of curing denture base resins______________?
The latest method of curing denture base resins______________?
A. Heat
B. Visible light
C. Chemicals
D. Lasers
One of the claims for the superiority composite resin restoration over silicate cement restorations is that the resin restorations_____________?
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
To cure a heat cure resin, a proper heating cycle is necessary_____________?
To cure a heat cure resin, a proper heating cycle is necessary_____________?
A. To prevent the porosity
B. To prevent warpage
C. To prevent volume expansion
D. All of the above
When restoring a tooth with resin material, acid etching can do all of the following except______________?
When restoring a tooth with resin material, acid etching can do all of the following except______________?
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
For esthetic areas where high luster is required the restoration used usually______________?
For esthetic areas where high luster is required the restoration used usually______________?
A. Glass ionomer restoratives
B. Hybrid resin composites
C. Microfilled resin composites
D. Macrofilled resin composites
Which of the following absorbs maximum amount of water ?
Which of the following absorbs maximum amount of water ?
A. Microfilled resin
B. Macrofilled resin
C. Hybrid
D. Light cure activated
The restoration which shows percolation and shrinkage along the margins is_____________?
The restoration which shows percolation and shrinkage along the margins is_____________?
A. Composites
B. Unfilled resins
C. Amalgam
D. Polycarboxylate
The commonly used laser for curing composite resin is______________?
The commonly used laser for curing composite resin is______________?
A. Nd:YAG
B. CO2
C. ER:YAG
D. Argon