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What causes cavities? - Mel Rosenberg


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When a team of archeologists recently came across some 15,000yearold human remains, they made an interesting discovery: the teeth of those ancient humans were riddled with holes. So what causes cavities, and how can we avoid them? Mel Rosenberg takes us inside our teeth to find out.

Lesson by Mel Rosenberg, animation by Andrew Foerster.

posted by emetinav7