"去看牙科医生" 的英语表达是 "to see a dentist"。
其中 "to see" 意思是 "去看"，"dentist" 意思是 "牙科医生"。
举例如下：
Example 1:
Engpsh: I need to see a dentist.
Chinese: 我需要去看牙科医生。
Example 2:
Engpsh: He is going to see a dentist next week.
Chinese: 他下周要去看牙科医生。
Example 3:
Engpsh: I haven't seen a dentist in a long time.
Chinese: 我很久没去看牙科医生了。