Tooth mousse, it's meant to protect the enamel on your teenth.

护牙素，用保护牙的。

Fluoride protects us from cavities by remineralizing enamel on our teeth.

氟化物通过再矿化牙保护我们免受蛀牙的侵害。

The organoids happily churned out the chemical components of enamel.

类器官愉快地分泌出了牙的化学成分。

Enamel is the strongest stuff in your whole body -- even stronger than bone!

牙是全身最坚硬的东西，甚至比骨头还硬。

Many foods weaken our enamel and brushing right after can actually damage your teeth.

许多食物损伤牙，吃完饭后就刷牙，实际上也损伤牙。

If you said enamel, flash a big old smile.

如果你选择牙，那就答对了。

Tooth enamel is the hardest substance in your body, did you know?

你知道吗，牙是人体内最坚硬的物?

So building enamel is like making rocks in your mouth.

所以生产牙就像在你嘴里生产岩石。

Enamel is the hard mineralized outer layer of the tooth.

牙是牙坚硬的矿化外层。

Frequent use of fluoride-containing mouthwashes, gels, toothpaste, and tablets will also fortify the enamel.

常使用含氟的漱口水、凝胶、牙膏和药片也可以强化牙。

Even with protective enamel ridges, these teeth would gradually have worn down.

即使是有保护的脊，这些牙也会逐渐被磨损。

If you zoom way in, tooth enamel looks almost like the weave of a basket.

如果放大牙，它与篮子的纹理非常相近。

The tooth has an enamel covering so it's relatively shiny.

牙表层有牙 所以稍微亮些。

And your teeth aren't hard enamel all the way through.

并且牙并不是全都是牙。

Even though enamel is strong, plaque and bacteria in your mouth can damage it.

尽管牙很坚固，但口腔中的牙菌斑和细菌也会对其造成损害。

Dentin is pretty hard, but unlike enamel, it's porous.

牙本非常硬，但与牙不同，它是多孔的。

We lose the enamel of teeth.

我们失去牙。

When all this enamel nano-fabrication is complete, your baby teeth finally bust out.

当所有这些纳米制造牙过程完成，你的乳牙就最终形成了。

The enamel contains chemical signatures of a local soil, passed by the plants the mastodons ate.

通过他们所吃的食物，牙上的带有一些当地土壤的化学成分。

As dental plaque grows thicker, the amount of oxygen near the enamel surface begins to fall.

当牙菌斑逐渐堆积变厚，牙表面的氧气含量就会开始下降。