A member asked:

At what age do the roots of the human teeth turn "hard"?

2 doctors weighed in across 2 answers

Root development : Roots of teeth develope after the crown had developed. They grow in length down from the crown. As far as 'hardness', they are fully developed once the end of the root narrows.

Answered 1/30/2013

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Dr. Peter Eng answered

It is always hard: Roots of teeth are always a hard structure.

Answered 2/9/2013

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