The tooth also had all the components of normal teeth, including enamel, crown and root, and connective fibers to fix it to bone.

培育的牙齿还具备正常牙齿的所有组成成分，包括釉质、齿冠和牙根，以及使其固定于骨头的结缔组织纤维。

youdao

The only reason to have titanium teeth? Medical reasons, he says, like "if a dog breaks a tooth... it's the same as a crown for a human."

他说，狗嘴里镶钛牙的唯一的理由，只能是因为牙科医学上的原因，“如果狗牙断掉了，也可以像人的牙齿一样，作一个牙冠镶嵌在上边。”

youdao

First, I'll make a small opening in the top (crown) of the tooth to expose the infected pulp..

首先，我要在牙齿的顶端(牙冠)开一个口，使受感染的牙髓暴露出来。

youdao