Increase in the residual mercury in silver amalgam filling can ?
A. Decrease condensation pressure
B. Cause fracture of the filling
C. Tarnish and corrosion
D. Increase the strength
DENTAL MATERIALS
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Which of the following is correct ?
A. Type I and Type II gold can be heat treated and annealed
B. Type III and Type IV gold can be heat treated and annealed
C. Type I and IV gold can be heat treated and annealed
D. All the type of gold can be heat treated and annealed