A. It increases compresssive and tensile strengths
B. Decreased compressive, increased strength
C. Decreased compressive, decrease tensile strength
D. Increased compressive, increased tensile strength
Related Mcqs:
- 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 - Butt joint in cementoenamel junctions seen is _________% of cases?
A. 10%
B. 30%
C. 60%
D. 90% - 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 - 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 - 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 - 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 - Once triturated, the Dental amalgam should be condensed with in_____________?
A. 5 minutes
B. 6 minutes
C. 3 minutes
D. 15 minutes - 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 - Gallium and indium added to Amalgam replace______________?
A. Silver
B. Tin
C. Mercury
D. Zinc
