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什么造成了龋齿？ - Mel Rosenberg
6,436,481 views |
Mel Rosenberg |
TED-Ed
• October 2016
Read transcript
当一群考古学家近日发掘出近15000年前的人类遗骸时，他们有了一个有趣的发现：远古人的牙齿上满是龋洞。那么，什么造成了龋齿，以及我们如何避免它们呢？Mel Rosenberg带领我们进入牙齿的世界去寻找答案。 讲解 Mel Rosenberg，动画 Andrew Foerster
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