MCQOPTIONS
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				| 1. | 
                                    First permanent molars begin to calcify at ______________? | 
                            
| A. | 6 months of intra utrerine life | 
| B. | At birth | 
| C. | Before decidous incisors | 
| D. | About 1 year after birth | 
| Answer» C. Before decidous incisors | |