Which of the following is true about calcification of teeth ?
Correct answer: D. Calcification of primary teeth is almost complete at time of birth
- A. Calcification of primary teeth starts around birth
- B. Calcification of all primary teeth and few permanent teeth complete at birth
- C. Calcification of all permanent teeth complete at birth
- D. Calcification of primary teeth is almost complete at time of birth
Explanation
Calcification of the primary teeth starts before birth, and the crowns are substantially, though not absolutely, calcified at birth. The permanent teeth are still largely uncalcified then, apart from limited early calcification in some first molars.
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