牙外科医生

例句：

1. 1. He is a renowned dentist who has performed thousands of surgeries.
   他是一位著名的牙医，已经进行了数千次手术。
2. 2. The oral surgeon was called in to perform emergency surgery on the patient.
   口腔外科医生被叫来对病人进行紧急手术。
3. 3. She had a root canal treatment and now needs regular dental checkups.
   她接受了根管治疗，现在需要定期的牙科检查。