Amalgams Mcqs
Q.1: The term trituration means____________?'
A. Lysing amalgam alloy
B. Mixing of amalgam alloy and mercury#
C. Removal of excess of mercury
D. None of the above
Q.2: The highest mercury concentration in amalgam filling is found_____________?K
A. At the margin of the restoration
B. In the centre of the restoration
C. In the deepest part of the restoration&
D. None of the above
Q.3: The ADA specification No 1 for composition of amalgam alloy recommends______________?U
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
Q.4: Which of the following phases of dental amalgam has minimum strength____________?Q
A. Gamma 1
B. Gamma 2
C. Epsilon 1
D. Gamma 3
Q.5: Compare to conventional amalgams, spherical amalgams_______________?D
A. Require more mercury
B. Require heavy compection forces
C. Have longer setting times
D. None of the above
Q.6: Which of the following statements about high copper silver alloy compared to conventional alloy is not true ?m
A. It has increased tensile and compressive strength1
B. It has poor tarnish and corrosion resistance,
C. Its edge strength is greater
D. Mercury content in the final restoration is less0
Q.7: Increase in the residual mercury in silver amalgam filling can_____________?L
A. Cause fracture of the filling
B. Tarnish and corrosion
C. Increase the strength
D. Decrease condensation pressure
Q.8: Chronic mercury toxicity results from_____________?3
A. Ingestion while removing old amalgam$
B. Skin contact
C. Mercury vapour
D. All of the above
Q.9: In spherical alloys as compared to lathe cut____________?9
A. Less condensing force is required!
B. More condensing force is required!
C. Both require same condensing force"
D. Manipulation is easy
Q.10: Well premeasured capsules of amalgam can release mercury vapour during_______________?V
A. Mulling
B. Carving
C. Condensation
D. Trituration

Related Mcqs

All Subject Mcqs