What if the tooth could repair itself with its own material – dentine?

如果利用质实现自我修复会怎样呢？

It uses a drug that causes the tooth to fill in the hole naturally with dentine.

其实利用一种药物激自动用质填补洞。

These express genes that produce dentine, another type of hard tissue that lies beneath the outer enamel.

这些细胞表达产生本质的基，这位于外层釉质下面的另一种硬组织类型。

Placoderm means " plate skin, " and plated they indeed were, with big chunks of bone, dentine and enameloid armor on their head and bodies.

Placoderm 的“镀层皮肤” ，他们确实镀层的，头部和身体上有大块的骨头、本质和珐琅质盔甲。

If you're picturing skin covered in human teeth - just stop, that's terrifying These " skin-teeth" were really more like bumps made of dentine, which is the hard tissue found underneath the enamel of your teeth.

如果你想象的人类覆盖的皮肤——停下来，那太可怕了。 这些“皮肤” 实际上更像由本质构成的肿块，本质珐琅质下面的硬组织。

Because this surface is made up of many teeth, and the outer enamel layer of the tooth would wear down slower than the inner dentine layer, the teeth themselves, would wear down at an uneven rate.

为这个表面由许多组成，而的外釉质层比内本质层磨损得慢，本身会以不均匀的速度磨损。