Cavo surface angle for amalgam resoration is butt joint as____________?

Related Mcqs:

1. 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...

2. Butt joint in cementoenamel junctions seen is _________% of cases?

   A. 10% B. 30% C. 60% D. 90%...

3. Angle of jaw ( or) skin over angle of mandible is supplied by______________?

   A. Great auricular nerve B. Lesser occipital nerve C. Greater occipital nerve D. Posterior auricular nerve...

4. 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...

5. Increase in the residual mercury in silver amalgam filling can_____________?

   A. Cause fracture of the filling B. Tarnish and corrosion C. Increase the strength D. Decrease condensation pressure...

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

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

7. The tarnished layer of silver amalgam consists of________________?

   A. Sulphides of silver B. Oxides of tin C. Chlorides of tin D. All of the above...

8. Once triturated, the Dental amalgam should be condensed with in_____________?

   A. 5 minutes B. 6 minutes C. 3 minutes D. 15 minutes...

9. For dental amalgam, the elastic modulus and tensile strength is______________?

   A. 40 Gpa and 60 – 100 Mpa B. 21 Gpa and 27 – 55 Mpa C. 350 Gpa and 10 – 120 Mpa D. 360 Gpa and 125 – 130 Mpa...

10. Gallium and indium added to Amalgam replace______________?

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