My girlfriend is also 23 years old, and she did it in Qujing 1 People's Hospital. Her whole course of treatment was completed in more than two years, about 4000 yuan, and there were many doctors, but the doctor who worked for my girlfriend was a beautiful woman, and I also want to know her name, hehe. Orthodontics is very painful. At first, she was too painful to eat anything. She lost 5 kilograms, and now she is only 45 kilograms. It's quite pitiful (I often cook porridge for her or something), but the pain will go away in a few days. The operation is to straighten the teeth slowly, and then tighten them at regular intervals. It must hurt when you pull. These are all discussed by people. She's only been doing it for two months.