dentist 
英 [ˈdɛntɪst]  美 [ˈdɛntɪst] 
n. 牙科医生，牙医

例句：
The dentist may decide that the wisdom teeth need to be extracted. 

牙医可能会认为智齿需要拔掉。

I have to go to the dentist tomorrow. 

我明天得去看牙医。

You should visit your dentist at least twice a year. 

你应该每年至少去看两次牙科医生。

Dentists advise you to have your teeth checked every six months. 

牙医建议大家每六个月检查一次牙齿。