The degree of skeletal deformity should be treated differently depending on the extent of the deformity. If only the teeth are deformed, then simple orthodontic treatment is sufficient; if accompanied by severe skeletal deformity, then orthodontic orthognathic treatment should be combined. The routine steps of orthodontic treatment are: first consultation, orthodontic program development and post orthodontic review and maintenance. Generally speaking, the orthodontic treatment is divided into the following steps: 1. First Consultation: First of all, the patient should go to the regular hospital for consultation, through the panoramic film or X-ray to detect the internal condition of the teeth. After the test, the doctor will be based on the deformity of the teeth and the actual wishes of the patient, the overall plan of treatment for the initial determination of the dental circumference of the overall program of orthodontic treatment. 2. Orthodontic program development: Orthodontic appliances can be divided into fixed orthodontic appliances and movable orthodontic appliances. After the doctor understands the overall situation of the patient, he will formulate a detailed orthodontic treatment plan based on the state of the patient’s teeth, and choose the suitable orthodontic appliances for the patient to wear in order to ensure the effect of the subsequent orthodontic treatment. 3. Post-corrective review and maintenance: Usually, patients need to wear the orthodontic appliances for about 1-3 years to achieve the effect of the orthodontic treatment. During the treatment period, regular review and maintenance should be done, the doctor will judge the effect of orthodontic treatment based on the review, and then determine whether the patient can remove the orthodontic appliances. Patients should note that during the period of wearing the appliances, they should keep the inside of the teeth clean and reduce the consumption of hard food to better promote the treatment and recovery of the teeth.