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

Related Mcqs:

1. According of ADA specification No or number 1, the minimum compressive strength for silver amalgam filling aftr one hour should be________________?

   A. 80 Mpa
   B. 140 Mpa
   C. 260 Mpa
   D. 510 Mpa

2. ADA specification number of gypsum products are described under____________?

   A. 1
   B. 4
   C. 12
   D. 25

3. The American dental association (ADA) specification number for non-aqueous elastomeric dental impression material is______________?

   A. 19
   B. 20
   C. 21
   D. 26

4. The gold alloys used for casting contain at least…. percent of precious metal according to ADA specification number 5________________?

   A. 55
   B. 65
   C. 75
   D. 85

5. 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

6. Which of the following silver amalgam alloy have the maximum strength________________?

   A. Lathe cut
   B. Spherical
   C. Admixed
   D. Single composition

7. Mercury rich condition in a slow setting amalgam alloy system in a resoration in______________?

   A. Accelerated corrosion
   B. Fracture of the restoration
   C. Merginal damage
   D. All of the above

8. 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

9. Which of the following constituents of amalgam alloy decreases expansion____________?

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

10. The largest component of amalgam alloy is_____________?

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