A. 80 Mpa
B. 140 Mpa
C. 260 Mpa
D. 510 Mpa
Related Mcqs:
- 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 - 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 - 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 - 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 - ADA specification number of gypsum products are described under____________?
A. 1
B. 4
C. 12
D. 25 - The American dental association (ADA) specification number for non-aqueous elastomeric dental impression material is______________?
A. 19
B. 20
C. 21
D. 26 - Materials which has high compressive strength and low tensile strength is classified with property of________________?
A. Ductility
B. Brittleness
C. Malleability
D. Resilient - The highest mercury concentration in amalgam filling is found_____________?
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 - Which of the following silver amalgam alloy have the maximum strength________________?
A. Lathe cut
B. Spherical
C. Admixed
D. Single composition - 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
