The highest mercury concentration in amalgam filling is found_____________?

Related Mcqs:

1. A patient who has had a recent amalgam filling in the upper teeth has a gold filling in the lower teeth, the patient complains of pain. The reason for this can be mainly_____________?

   A. Improper amalgam filling B. Pulp exposure C. Galvanism D. None of the above...

2. 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...

3. 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...

4. Well premeasured capsules of amalgam can release mercury vapour during_______________?

   A. Mulling B. Carving C. Condensation D. Trituration...

5. 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...

6. 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%...

7. Pitting of direct filling old restoration usually results from_________________?

   A. Using contaminated gold foil B. Poor finished preparation C. Improper stepping of condenser point D. Using small condenser point...

8. Which of the following is true about direct filling gold______________?

   A. Properly condensed mat gold has no voids B. Whatever may be the type voids are inherent C. Voids can be avoided with manual condensation D. None of the above...

9. Direct filling gold formed by electrolytic precipitation is called by all the terms EXCEPT______________?

   A. Crystalline B. Granular gold C. Mat gold D. Sponge gold...

10. The main advantage of composites over unfilled direct filling resin is their_____________?

    A. Higher solubility in saliva B. Lower modulus of elasticity C. Esthetic excellence D. Lower thermal co-efficient of expansion...