MCQOPTIONS
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				| 1. | 
                                    In non zinc containing dental amalgam alloy the percentage of zinc present is______________? | 
                            
| A. | Less than 0.02% | 
| B. | Less than 0.1% | 
| C. | Less than 0.01% | 
| D. | None of the above | 
| Answer» D. None of the above | |