With the holiday season coming to an end, a stressful semester is over and children can finally relax. However, in addition to reviewing schoolwork, it is also necessary to check your child’s health during the holidays, especially for eye and dental checkups, as children are most prone to problems with their eyes and teeth at this stage. The incidence of malocclusion in children is very high at the moment, so if they need to have their teeth straightened, using the ample vacation time is a good opportunity not to be missed. Because orthodontic treatment requires a series of processes such as radiographs, blood tests, mold making, orthodontic plan development, tooth extraction, tooth division, braces, etc., which takes 1-2 weeks before and after, and there will be discomfort when wearing braces for the first time, which will have a certain impact on the child’s life, parents can take better care of their children by using the time off at home, so as to adapt to the braces as soon as possible, reduce the chance of orthodontic accessories falling off and promote the shortening of the whole course of treatment. Therefore, during the holidays, do not forget to come to the dentistry department as early as possible to check the child’s dental problems. Orthodontics is generally done after all the milk teeth have been replaced at the age of 11-13 years, but patients with conditions such as “envelope”, receding jaw, and bad habits of lip biting, tongue spitting, sucking and mouth breathing that can affect the normal development of the facial bones and oral functions should be orthodontic earlier, at the age of 3-9 years. -It can be started at the age of 9.