It's too late to be 20, but you can still do it. Generally, junior high school correction is the best, and braces and braces are needed. Depending on individual needs.

Some friends didn't correct it until they graduated from college. It seems that it takes more than a year to wear braces, and it costs several thousand yuan. The process is difficult and long, but it still has certain effects.

These must be done in public hospitals, looking for regular hospital doctors. Cheng Nan Hospital doesn't seem to be very good. It is recommended to go to a bigger hospital in Guancheng. For example, the Municipal People's Hospital and so on, you can ask several more. After all, braces should be worn for a long time, and regular follow-up visits are needed to replace braces.