Growth of all permanent teeth except last molars is completed by___________?
Correct answer: D. 17 years
- A. 6 years
- B. 8 years
- C. 12 years
- D. 17 years
Explanation
By about 17 years, development of nearly all permanent teeth other than the third molars is complete. Third molars are excluded because their eruption and root completion are much more variable and often occur later.
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