Calcification of roots of decidous teeth is completed by_____________?
Correct answer: B. 4 years
- A. 2 years
- B. 4 years
- C. 6 years
- D. 8 years
Explanation
The roots of primary teeth are generally completed by about four years, after which they remain stable until physiological resorption begins before exfoliation. This makes four years the best listed age.
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