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
Dental Materials
Dental Materials Mcqs for preparation. These Mcqs are helpful for Medical students. Dental Materials Multiple Choice Questions (MCQ) for entrance examinations and other competitive examinations for all Experienced, Freshers and Students.
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. Thermal changes
B. Thickness of the resin
C. Lack of temperature
D. Packing past the dough stage
