There is an adaptation period at the beginning of orthodontics for children, children who undergo orthodontics may feel uncomfortable or uncomfortable eating, during the adaptation period must let children insist on wearing braces, at the beginning also pay attention to wearing braces when eating may appear stuffed and so on, gradually get used to it after eating must take the braces down, after eating food to brush the teeth quickly put on the braces. Some fixed aligners may not be taken down, so it is more difficult to clean, parents need to urge children to pay attention to dental and oral hygiene. It is also necessary to follow the doctor’s instructions for regular follow-up appointments and to apply extra force to the aligners. After orthodontic treatment, children with bad oral habits should be checked to see if the bad habits have improved and corrected, and the aligners should be taken off for regular review. Early orthodontic treatment for children will be new as teeth continue to be replaced, at this time the patient should come to the hospital regularly to determine whether there is a need for second-stage orthodontic treatment.