There is no specific optimal age for orthodontic treatment for children, it should be judged accordingly to the specific problems of the child’s teeth, usually mostly after 12 years old. 1. Most of the children after 12 years old, all the milk teeth are replaced by permanent teeth, this period is the most suitable for orthodontic treatment, because this is a relatively stable stage, this time by wearing braces, applying pressure on the teeth, can be pulled back to the normal position of the deformed teeth, to achieve orthodontic effect. 2. Children at this age are in the growth period, the teeth grow more space, through orthodontics, you can realize the rapid movement of the teeth, and alveolar bone growth and remodeling, the need for orthodontic time is shorter. When is the best orthodontic period for children, specific need to go to the hospital stomatology department, let the doctor according to the child’s condition to give judgment, make the corresponding treatment.