prevomer

例句：

1. 1.She had a toothache in her prevomer.
   她前磨牙疼。
2. 2.The dentist removed the prevomer and replaced it with a crown.
   牙医拔除了前磨牙，并给它做了冠。
3. 3.The child's prevomer was chipped, so he needed to get it fixed.
   孩子的前磨牙被磕掉了，所以需要修整。