Generally speaking, it is best to do orthodontics at the age of 10- 12. But it doesn't matter if it exceeds, there is no clear age limit for orthodontic teeth. The sooner you do it, the longer it takes, the more beautiful it is! Because during this period, the efficiency of tooth movement and alveolar bone reconstruction can be guaranteed to reach the best state, and the effect of tooth correction is the best and the time required is shorter.