The correction time is related to the degree of dislocation of the patient's teeth, the condition of the bone, the age of the patient, and the coordination of the patient. It usually takes about 2 years. The longer the dislocation is, the longer it takes. The older the older the remodeling ability, the longer it takes. The simple medical record for adolescents of the appropriate age may end in more than a year, and it may be more than three years if it is a complex medical record of an older age.