The best age for deep overjet orthodontic treatment is during puberty, which is around 11-13 years old for females and 12-15 years old for males. The metabolism of the body is faster during adolescence, and osteoblasts and osteoclasts are generated faster. At this time, the displacement of the teeth is faster and easier to correct, and the correction can be completed in one time, and the cost is also lower. Adolescent children’s teeth have basically been replaced, do not have to worry about the teeth continue to erupt during orthodontic treatment, resulting in subsequent orthodontic treatment. After orthodontic treatment, it is necessary to wear a suitable retainer to avoid rebound, and pay attention to oral hygiene during orthodontic treatment, regular oral examination to avoid gingivitis or caries. Although deep overjet orthodontic treatment can treat malocclusion, it can also bring certain hazards in the later stage, such as the lower end of the face becomes shorter, and the teeth can not be aligned with the top and bottom when you grow up, etc. It is recommended to go to a specialized hospital stomatology department. It is recommended to go to the dentistry department of professional hospitals, do the examination first, and choose the suitable plan for yourself under the guidance of the doctor.