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By what maximum age should the first teeth erupt?

 # Normally, by what maximum age should the first teeth erupt?
A. 10 to 11 months
B. 6 to 8 months
C. 14 to 16 months
D. None of the above


The correct answer is A. 10 to 11 months.

In primary dentition, the variation of eruption has a range of 4-5 months. Since the first tooth erupts at an age of six months, a variation of 4-5 months can be considered normal. 

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