Dental Materials MCQs with answers for medical students. Dental Materials questions with answers for all competitive exams and test preparation. Dental materials MCQs with answers pdf, MCQ dentistry PDF with answers,
Setting time of Amalgam is best controlled by ?
A. Trituration time
B. Altering Hg-Alloy ratio
C. Using spherical particles
D. Lathe cut alloyFinishing and polishing of Amalgam make the restoration ?
A. Decrease the tarnish and corrosion resistance
B. Increased compressive strength
C. Increase in tarnish and corrosion resistance
D. Increase the marginal strengthAdmixed high copper alloy powder contains ?
A. 13-30% copper
B. 9-20% copper
C. 13-20% copper
D. 9-30% copperDental amalgam is most resistant to ?
A. Shear stress
B. Tensile stress
C. Compressive stress
D. Impact stressFluoride rich materials include?
A. Polycarboxylate cement
B. Silicate cement
C. Glass ionomer cement
D. All of themWhich one of the following dental cement accelerates the formation of reparative dentin?
A. Calcium Hydroxide
B. Silica
C. Eugenol
D. Zinc oxideTemperature (in °F) of the mixing slab for silicate cements should be ?
A. 75 – 85
B. 85 – 95
C. 65 – 75
D. 55 – 65Increased amount of powder in zinc phosphate cement mixture will cause ?
A. Decreased film thickness
B. Increased setting time
C. Decreased strength
D. Decreased solubilityHigher the Hg alloy ratio in dental amalgam ?
A. Lower the creep value
B. More matrix matrial formed
C. Higher the strength
D. ore gamma 1 phase formedWhich of the following constituents of amalgam alloy decreases expansion ?
A. Tin
B. Silver
C. Copper
D. Zinc