Steel braces orthodontics, i.e. the traditional straight arch orthodontic technique, is mainly divided into three major steps, examination and design of the program, orthodontics, and retention. 1. Examination and design plan: The physician determines the type of deformity of the patient through clinical examination, X-ray film, and preexisting model, determines the initial treatment plan, and informs the expected results. 2. Orthodontics: It is mainly divided into three major steps, first of all, aligning and leveling the dental arches; then closing the gaps to adjust the occlusion; and finally, making fine adjustments, which roughly takes 1~2 years. 3. Maintenance: According to the type of deformity before orthodontics, choose to maintain time, generally also ranging from 1-2 years, some patients prone to recurrence need to increase the time according to medical advice. It is recommended to go to the regular hospital stomatology consultation, orthodontics requires good cooperation with the patient, it is recommended to fully communicate before treatment.