At what stage of prenatal development does the initial calcification of primary front teeth typically start?

Show Answers

Between 14 and 17 weeks before birthBetween 9 and 12 weeks before birthBetween 6 and 9 weeks before birthBetween 17 and 20 weeks before birth

Explanation

The earliest sign of calcification in the primary anterior teeth usually occurs between 14 and 17 weeks of fetal development. Other timeframes such as 9 to 12 weeks, 6 to 9 weeks, or 17 to 20 weeks are either too early or too late for this initial calcification phase.