Advantage of zinc containing amalgam is_______________?

Related Mcqs:

1. In non zinc containing dental amalgam alloy the percentage of zinc present is______________?

   A. Less than 0.02% B. Less than 0.1% C. Less than 0.01% D. None of the above...

2. How soon after a moisture contamination does a zinc containing amalgam alloy start expanding________________?

   A. 24 hours B. 1-2 days C. 3-5 days D. 7 days...

3. Cause of expansion in zinc containing amalgam is_____________?

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

4. Advantage of zinc phosphate over GIC is______________?

   A. High compressive strength B. Tensile strength C. High modulus of elasticity D. Diametral strength...

5. The chief advantage of zinc phosphate cement is its___________?

   A. Good compressive strength B. Film thickness C. Lack of irritation D. Low solubility...

6. In a high copper amalgam the phase, which is eliminated is_______________?

   A. Gamma 1 B. Gamma 2 C. Gamma 1 and 2 D. No phase is eliminated...

7. Amalgam restorations give the best clinical service when the residual mercury content is_______________?

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

8. The ADA specification No 1 for composition of amalgam alloy recommends______________?

   A. 65% silver, 32% tin and 3% copper B. 49% silver, 32% tin and 19% cooper C. 65% silver, 29% tin and 5-6% copper D. None of the above...

9. Which of the following are characteristic feature of high copper amalgam alloy ?

   A. Low compressive strength B. High marginal breakdown C. Less marginal # D. High creep...

10. Which is not true about high copper amalgam alloys______________?

    A. Low tensile and compressive strength B. Low Hg: Alloy ratio C. High tensile strength D. Low creep...