I don't know where the landlord is, and the price is different in every place. I come from Zigong, Sichuan. I'm about your age, in my twenties. I had orthodontics in Chengdu Yafei Dental Branch (Zigong Branch), which cost 3700 yuan (including photography and dental molds). Yafei Stomatology is a famous stomatological hospital in Sichuan. The landlord can estimate how much money you have here according to my situation. If you have to go to the hospital for consultation, please note: you must find a good hospital. In addition, filling teeth is generally not adopted after tooth extraction, because the distance left after tooth extraction can be eliminated by orthodontics. If the big tooth that chews food is pulled out, it may be necessary to fill the tooth. The first two weeks of orthodontics are very painful. It is recommended to eat porridge (not to bite steamed bread or bread), and it is best to prepare a cup of milk or sesame paste for dinner at night. I go to the hospital for a follow-up visit every month to enhance my physical strength. Oral ulcers will appear after the appliance is installed, which will take about two or three weeks to eliminate. Buy some anti-inflammatory drugs yourself.