Primary tooth stage-malocclusion or malocclusion of primary teeth should be corrected at an early stage. The treatment age is about 3-6 years old. At this time, the child's permanent teeth have not erupted, and the roots of deciduous teeth have not been absorbed and are relatively stable. It can be corrected by wearing oral appliance, and the course of treatment is about 6 months. Early treatment is of great benefit to the normal development of children's maxillofacial region. If it is not corrected in time, it may aggravate the deformity in this rapid growth period.

Mixed dentition-about 7~ 1 1 year old. When new permanent teeth begin to erupt, the teeth grow rapidly and the occlusion is unstable, which is the frequent period of tooth deformity.

The main reason is the loss or retention of deciduous teeth, which leads to the reduction of dental arch length and the uneven arrangement of teeth. Such children should be guardians of the gap. The deciduous teeth fall off prematurely and close the gap, resulting in insufficient eruption space under constant pressure, resulting in tooth deformity. This gap should be repaired with an appliance. Bad oral habits or hobbies lead to tooth deformity. While overcoming and changing bad habits, according to different situations, movable or fixed appliances can be used to correct dentition in different degrees, and even external forces can be used for plastic surgery.

Permanent tooth stage-generally around the age of 12~ 18, the deciduous teeth have all been replaced, and the second and third teeth are in another rapid growth period. At this time, the diagnosis of tooth deformity is clear, and the correction is rapid and stable in this rapid growth period.

Adult Orthodontics-/kloc-Adult orthodontics can be performed after 0/8 years old, so as to establish a good occlusal relationship and relieve tooth crowding and disorder, thus preventing or treating periodontal disease and dental caries. At this time, orthodontics can adjust the axial direction of teeth to facilitate implantation and restoration, restore the functions of chewing, language and temporomandibular joint, and improve facial beauty.

Therefore, it is not absolute to determine the best time for orthodontics, and doctors will decide according to different types of tooth deformities and individual growth and development. But for many patients with facial injuries caused by teeth, timely treatment can get twice the result with half the effort.

I hope my answer is helpful to you, and I hope it will be adopted! ! !