tooth clearance

例句：

1. 1.The dentist advised us to have a tooth clearance check-up.
   牙医建议我们进行一次牙齿间隙检查。
2. 2. She was worried about her child's tooth clearance.
   她担心孩子的牙齿间隙。
3. 3. The dentist recommended that she get a tooth clearance treatment.
   牙医建议她接受牙齿间隙治疗。