260Dental MaterialsMedium
The ADA specification No 1 for composition of amalgam alloy recommends________?
A49% silver, 32% tin and 19% cooper
BNone of the above
C65% silver, 29% tin and 5-6% copper
D65% silver, 32% tin and 3% copper
Correct answer
C. 65% silver, 29% tin and 5-6% copper
Explanation
The correct answer is 65% silver, 29% tin and 5-6% copper.