How about the west outpatient department of stomatological hospital of West China University of Medical Sciences?
The service attitude is not bad, and it feels good. I felt that my teeth were not white since I was a child, so I did it. Unfortunately, I haven't done it, because I'm afraid the dragon's tail won't look good. But now I heard that tooth washing is good for teeth, so I took a chance and felt good. My teeth are really white and I like them very much.