I daresay you'll find you can, ' said Professor McGonagall through tightly gritted teeth.

麦格教授紧咬牙根说。

The first part is the root, and it sits within the alveolus.

第一部分是牙根，位于牙槽骨内。

That's right. My job is less interesting that root rot.

也对 职业是比不上烂牙根有意思。

What happens is that the root is anchored well into the lower jaw.

实际情况就是这个牙根深深地嵌在其下颌骨上。

Eventually, bacteria travel down into the root canal space, and fill the entire inside of the tooth.

最终细菌进入牙根管，充满整个牙齿内部。

When you pull my tooth will you also have to extract the nerve and the root?

什么候牙，候也要掉牙神和牙根吗？

The tooth and nerves and roots are now at rest.Sensation will now be normal.No poison.

牙齿和神及牙根现在处于休息状态。神感受现在会很正常。没有毒。

It's your brother. He's texting me now. How does he know my number? -Must be a root canal.

是你哥哥。他开发短信了。他咋知道号码？-他肯定在进行牙根治疗。

These are pulverizing teeth, these could pierce through flesh, they could shatter bone, and they're anchored by extremely deep roots.

这些牙齿仿佛粉碎机一般，能够撕开血肉，也能咬碎骨头。这些牙牙根非常之深。

The root is covered by cementum, which is a bonelike substance that the periodontal ligament's fibers attach to.

包裹着牙根是牙骨质，是一种骨样物质，也是牙周韧带纤维连接部分。

Your gums have receded and some of the root is showing.

你牙龈已退缩，一些牙根露出来了。

Next, there's the neck, which is the transition between the root portion covered by bone and the crown.

接下来是牙颈，即被骨骼覆盖牙根部和牙冠部之间过渡区。

Blood vessels and nerves come from the jaw bones, and enter the center of the root through a narrow passage, called the apical foramen.

血管和神从颌骨通过一个叫做牙根尖孔狭窄通道进入牙根中央。

Because the Albertosaurus teeth that we find here don't have the roots.

因为们在这里找到艾伯塔龙牙齿没有牙根。

I know. I know. I'm having my root canal the same week.

知道 知道 那周还要动个牙根手术。

When the root was almost completely resorbed, a tooth would become loose.

当牙根几乎完全被吸收，牙齿就会松动。

Just like when we lose our baby teeth, the roots get reabsorbed.

就像当们失去乳牙，牙根会被重新吸收。

The root is the part, remember, of the tooth that is below the surface, that you can't normally see.

记住， 牙根是牙齿表面以下部分，您通常看不到。

They all had a small crown, enamel and a small root. She said the boy suffered from a very rare dental problem.

它们都有一个小尖点、牙釉质和一个小牙根。”她表示男孩患有一种非常罕见牙齿问题。

There are dentists like Dr. August de Oliveira, who are using augmented reality to see the roots of your teeth while working on your teeth.

有像奥古斯特·德·奥利维拉医生这样牙医，在检查牙齿利用增强现实观察你牙根。