cusp cap

例句：

1. 1. The youngman's cleft in the chinis a perfect example of a cuspcap.
   这个年轻人下巴的裂缝完美地展示了门牙。
2. 2. She had to have her frontteeth fixed because they were too crooked.
   她不得不把前牙矫正，因为它们太歪了。
3. 3. The dentist advised him towear a mouth guard during his next dentalprocedure.
   牙医建议他在下次牙科手术时戴上牙套。