Medical Mcqs

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

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. 25°C
B. 37°C
C. 50°C
D. 60°C

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

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

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

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

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

A. 300 mw/sm2
B. 350 mw/cm2
C. 400 mw/cm2
D. 450 mw/cm2