A. 80 Mpa
B. 140 Mpa
C. 260 Mpa
D. 510 Mpa
A. 9-20% copper
B. 13-20% copper
C. 9-30% copper
D. 13-30% copper
Admixed high copper alloy powder contains_________________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Increase in tarnish and corrosion resistance
B. Increase the marginal strength
C. Decrease the tarnish and corrosion resistance
D. Increased compressive strength
Finishing and polishing of Amalgam make the restoration______________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Using spherical particles
B. Lathe cut alloy
C. Altering Hg-Alloy ratio
D. Trituration time
Setting time of Amalgam is best controlled by _______________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Less than 0.02%
B. Less than 0.1%
C. Less than 0.01%
D. None of the above
A. Have less marginal breakdown
B. Are workable at lower Hg-alloy ratio
C. Have a higher ratio of tensile to compressive strength
D. Have less resistance to tarnish and corrosion
A. Silver
B. Tin
C. Zinc
D. Copper
The largest component of amalgam alloy is_____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. Dissolve the alloy in mercury
B. Coat the alloy particle with mercury
C. Remove excess mercury from the amalgam
D. Dissolve Hg in alloy
During amalgamation, trituration is done to_____________? Read More »
Amalgams, Dental Materials, Medical Mcqs A. 38-42%
B. 48-52%
C. 58-62%
D. 68-72%
A. 30-35%
B. 26-28%
C. 13-32%
D. 22-30%
Percentage of tin in low copper alloy is______________? Read More »
Amalgams, Dental Materials, Medical Mcqs