Faustick has cleaned his teeth after every meal for thirteen years and has not had a single decayed tooth.

福斯蒂克已经连续13年每顿饭后都刷牙，一颗蛀牙也没有过。

youdao

I have a decayed tooth.

我有一颗虫牙。

youdao

I had a decayed tooth drawn by the dentist.

牙医给我拔出了蛀牙。

youdao

Lasers vary in type, but one major brand, Waterlase, works by heating water molecules in the tooth, which then expand and dislodge decayed tooth structure, according to manufacturer Biolase Inc.

WSJ: To Cut Tooth Decay: A Laser vs. a Drill

The physical anthropologist who carried out the examinations, Professor Andrea Cucina said the work could have been done to treat tooth decay, and suggested some plant or other material, which would have since decayed, could have been inserted into the hole.

BBC: Prehistoric dentistry evidence found