Cartilago septi nasi

例句：

1. 1.She had her teeth cleaned before the surgery.
   手术前她去洗了牙。
2. 2. The dentist told him to floss his teeth regularly.
   牙医告诉他要经常刷牙。
3. 3. He had a tooth extracted due to decay.
   由于蛀牙，他拔了一颗牙。