Stain formed inside the tooth structure from OUTSIDE sources.

Medicine

1 answer:

Bogdan [553]3 years ago

4 0

Answer:

The correct answer is - exogenous stain.

Explanation:

Exogenous stains are the intrinsic stains that affect teeth from inside as stain formed inside due to the external sources. In this type of stain, it formed after a tooth has erupted. These stains can occur when the very inner part known as dentin is turned dark or yellowish.

These stains can not be polished and removed. These can occur if an individual has plaque or calculus in the tooth.

Thus, the correct answer is - exogenous stain.

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