department of dentistry

例句：

1. 1.He is a dentist with over 20 years of experience.
   他有超过20年的牙医经验。
2. 2.The dentist recommended a root canal treatment for her tooth.
   牙医为她那颗牙齿推荐了根管治疗。
3. 3. She went to the dentist for a check-up and received a cleaning.
   她去看牙医做检查，还接受了一次洁牙。