Category: Dental Materials

A. Thermal changes
B. Thickness of the resin
C. Lack of temperature
D. Packing past the dough stage

A. Internal color
B. Tissue compability
C. Surface hardness
D. Craze resistance

A. Step-growth polymerization
B. Addition polymerization
C. Condensation polymerization
D. Copolymerization

A. Removes smear layer
B. Increases surface energy of dentin
C. Forms a thin resin layer over exposed collagen fibrils
D. Helps in bonding with composite

A. 0.2% to 0.5%
B. 2% to 5%
C. 0.3% to 0.5%
D. 2% to 5%

A. 3:1
B. 4:1
C. 10:1
D. 5:1

A. 10 um – 20 um
B. 3 um – 9 um
C. 50 um – 110 um
D. 200 um – 250 um

A. 25°C
B. 37°C
C. 50°C
D. 60°C

A. Better control over placement
B. Enhance and concentrate the action of acid
C. Helps in visualization while placement
D. None of the above

A. Knoop hardness number 18 to 20
B. Tensile strength of 60 MPa
C. Density of 1.13 g/cm3
D. Modulus of elasticity of 3.4 GPa