Medical Mcqs

A. 9-20% copper
B. 13-20% copper
C. 9-30% copper
D. 13-30% copper

A. Increase in tarnish and corrosion resistance
B. Increase the marginal strength
C. Decrease the tarnish and corrosion resistance
D. Increased compressive strength

A. Using spherical particles
B. Lathe cut alloy
C. Altering Hg-Alloy ratio
D. Trituration time

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

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

A. 38-42%
B. 48-52%
C. 58-62%
D. 68-72%

A. 30-35%
B. 26-28%
C. 13-32%
D. 22-30%

A. Zinc and water
B. Water
C. Hydrogen
D. Nascent oxygen