Orthodontics is categorized into milk teeth orthodontics and permanent teeth orthodontics. The best age for orthodontic treatment is 3 to 6 years old, and the best age for orthodontic treatment is 12 to 18 years old. The age of 3 to 6 is the time when the milk teeth are prone to problems, if there is a problem of jaw reversal during this period, it should be corrected in time. 12 to 18 years old, this age of the child’s milk and permanent teeth renewal, the development of the teeth is basically finalized, and the body develops faster, the treatment effect will be better, and it can be worn with orthodontic braces. In principle, there is no age limit for orthodontic treatment, but the effect of treatment has a certain relationship with age, and generally speaking, the earlier the correction, the better the effect. You should go to a specialized hospital or clinic for advice on whether or not to undergo orthodontic treatment.