Go to Beijing Stomatological Hospital in the Temple of Heaven. I corrected my teeth there two years ago, and the effect was not bad. You don't have to check in at six o'clock. Generally, you can register around eight o'clock (except for limited experts). You can register in advance for the first time, and register directly with the doctor's follow-up notice when you come back. I suggest you find a hospital close to home, because it is very troublesome to see your teeth, and you need to go to the clinic frequently, especially to correct your teeth. I often go to the hospital in the early stage and once a month in the later stage. I haven't been to other stomatological hospitals. There is a Mei Jia dental clinic in front of my house, but there seems to be more dental care and beauty. I often see their advertisements, such as 50 yuan for tooth washing and sticking a dental drill, which may be unprofessional.