# Hypothetical question about cavities...

**URL:** <https://boards.straightdope.com/t/hypothetical-question-about-cavities/287841>\
**Category:** Factual Questions\
**Created:** [February 1, 2005, 8:03pm UTC](https://boards.straightdope.com/t/hypothetical-question-about-cavities/287841 "2005-02-01T20:03:50Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![feldman](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@feldman](https://boards.straightdope.com/u/feldman)\
**Post date:** [February 1, 2005, 8:03pm UTC](https://boards.straightdope.com/t/hypothetical-question-about-cavities/287841/1 "2005-02-01T20:03:50Z")

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If you noticed that a cavity is forming (pre-caries) on your tooth, with proper care, is it possible that the penetrated layer of enamel could renew itself?

I cannot find information on how long this would take, but it seems that it would be a long time because if I remember correctly, the synthesis of the calcified material is not quick.

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**Author:** ![Kaitlin](https://avatars.discourse-cdn.com/v4/letter/k/59ef9b/32.png) [@Kaitlin](https://boards.straightdope.com/u/Kaitlin)\
**Post date:** [February 1, 2005, 8:37pm UTC](https://boards.straightdope.com/t/hypothetical-question-about-cavities/287841/2 "2005-02-01T20:37:50Z")

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I was told by my dentist that using toothpaste with a higher amount of flouride could eventually repair those, but I haven’t any experience with it myself.