Cause of expansion in 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. Advantage of zinc containing amalgam is_______________?

   A. Better handling property B. Dimensional Stability C. Resistance to creep D. Toxicity to pulp and dentin...

3. 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...

4. The largest component of amalgam alloy is_____________?

   A. Silver B. Tin C. Zinc D. Copper...

5. The principle application of zinc phosphate cement is_____________?

   A. In final cementation B. As temporary cementation C. As a temporary filling material D. It has less occlusal wear...

6. The major component of zinc phosphate cement is_____________?

   A. Zinc oxide B. Phosphoric acid C. Zinc D. None of the above...

7. 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...

8. Gallium and indium added to Amalgam replace______________?

   A. Silver B. Tin C. Mercury D. Zinc...

9. Amalgam achieves 70% of the strength by____________?

   A. hours B. 4 hours C. 8 hours D. 16 hours...

10. Setting time of Amalgam is best controlled by _______________?

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