Orthodontics are all about aesthetics, or improving chewing function, and if the doctor advises the patient to do orthodontics, it will definitely have a good impact on chewing function and appearance and appearance. Orthodontic drawbacks are mainly the following: 1, if patients do not pay attention to brushing, may cause tooth decay, may also cause gum inflammation, older may cause gum recession, gum recession may also appear after the commonly said black triangle; 2, wear braces is not conducive to teeth brush clean; 3, can not eat something particularly sticky or particularly hard, may affect the diet. There are no obvious disadvantages of general orthodontic treatment, as long as you cooperate with the doctor and comply with medical advice, the basic orthodontic effect is very good, and there will be no sequelae or disadvantages. Some parents also worry about whether the teeth will loosen, after orthodontic treatment these problems are not too worried. There are some adults with periodontitis, after orthodontics, not only look good, but also chewing function and teeth firmness can be improved to some extent.