First permanent molars begin to calcify at ______________?
Correct answer: A. At birth
- A. At birth
- B. 6 months of intra utrerine life
- C. Before decidous incisors
- D. About 1 year after birth
Explanation
The first permanent molars begin calcifying around birth, making “at birth” the standard developmental landmark. Their crowns are completed several years later, so calcification is not complete at this stage.
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