The dentist commenced to dig, drill and finally fill the offending tooth.

牙医开始在那颗有问题的牙齿上挖洞，钻孔，直到最后把它补好。

youdao

The dentist had to drill a hole in my tooth.

医生不得不在我的牙上钻个洞。

youdao

Analysis is made of the reasons of layering in compact of drill tooth alloys due to the die structures. Measures are taken to improve the die structures.

分析了因模具结构造成钻齿类合金压坯分层的原因，提出了改进模具结构设计的措施。

youdao

Friction builds up between the drill and the tooth, heating up the enamel and causing nerves to flare.

FORBES: A Painless Root Canal?

He says the laser allows him to remove less tooth material than when he uses the drill.

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