Traditional orthodontics can only change the problem of uneven dentition. If it is used for the problem of bony tooth protrusion, it will rebound. Because of its precise technique, Meiguan has broken through the problem that adults can't use braces or traditional orthodontic techniques to correct jaw deformities. Fundamentally solve the problems of skeletal tooth deformity and uneven teeth, completely correct tooth protrusion at one time, and keep the effect from recurring for a long time.