The best time for orthodontics in children is before 6 years old, and the effect is better around 4-5 years old. Reverse occlusion deformity of children's anterior teeth, commonly known as the tooth of heaven. If found early, orthoses can usually work within two months, which can correct patients' facial deformities.

If the growth rate of the lower third of the face is slower than that of the upper middle part of the face when changing teeth after the age of six, then the mandible is prone to hypoplasia and deformity. /kloc-delaying treatment after 0/2 years old will greatly reduce the effect of facial orthosis. The appropriate correction time is about 12 years old, and all the first permanent molars in front of deciduous teeth are replaced, but some people's teeth are replaced earlier, and perhaps all the deciduous teeth around 10 years old fall off. You can go to the stomatological hospital first to find out and correct them as soon as possible, so as not to affect your child's facial development.

After all the deciduous teeth are replaced, the orthodontic effect of children is the best, so the best orthodontic time for children is about 12 years old. It is suggested that patients avoid eating sticky or hard food during orthodontics, keep their mouth clean and pay attention to brushing their teeth after meals. The treatment stage of deciduous teeth and jaws is 2 ~ 5 years old, and the best treatment age is about 4 years old. At this time, the baby's permanent teeth have not erupted, and the roots of deciduous teeth have not been absorbed. Under the guidance of a doctor, wearing a mobile appliance and correcting bad oral habits can complete the treatment in 3-6 months. This time is the replacement period. If it is the period of jaw replacement, the treatment time should be 6- 12 years old, and the best treatment age should be about 9 years old. At this time, there are only teeth and jaws, and correction is relatively easy. According to the situation of children's mandible, moving, fixing and correcting devices are used respectively, and even teeth can be corrected by the plastic force of water.

General dentition deformity correction, 12 years old is more suitable. If the baby's deciduous teeth all fall off at the age of 12, orthodontics can be performed at the age of 12. For some patients with growth retardation and residual deciduous teeth at the age of 14- 15, they can only be corrected after deciduous teeth fall off. The treatment time of these two types of patients will be 3-4 years different.