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，在检查牙齿时利用增强现实观察你牙根。

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

它们都有个小尖点、牙釉质和个小牙根。”她表示男孩患有常罕见牙齿问题。

There was a point when I was having a filling, so I had a hole in my tooth and I remember that it was quite deep in my tooth, like quite near the root of my tooth.

有次我补牙，所以我牙齿有个洞， 我记得那个洞很深，几乎接近牙根了。