Enamel from a fragment of an ancient rhinoceros tooth as seen under increasing levels of magnification. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to ...
Tooth enamel is one of the hardest tissues in the human body. It acts as a protective layer for our teeth and gives our smile that pearly white shimmer. But when enamel erodes, it can’t regrow itself.
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