dental corona

例句：

1. 1. The dentist performed a dental crown on my tooth.
   牙医给我的牙齿做了牙科冠。
2. 2. The patient had a dental crown placed to protect the tooth.
   患者安装了牙科冠来保护牙齿。
3. 3.The dentist advised the patient to replace the old dental crown with a new one.
   牙医建议患者更换旧的牙科冠。