MCQOPTIONS
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| 1. |
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 |
| Answer» D. None of the above | |