This depends on the dentist in your local regular third-class hospital. If you are in a third-tier city, it is generally around 10000. If you are in a first-class or second-class hospital, 10000 starts. This is the most basic kind of steel bracket. If it is self-locking, it usually costs about 2000 yuan. If it is invisible braces, the minimum cost of invisible correction is generally one set. 40 thousand will take a long time to start, depending on whether your teeth are arranged in that way. If so, you even need fake money to see you. If you don't have that kind of comfort and beauty, I suggest you bring a rigid brace or that kind of self-locking and self-locking correction is faster than ordinary expensive arbitrage.