Just as there are age-related changes in the skin, there are also age-related changes in the teeth, and as we get older, the slight misalignment of teeth in adolescence will gradually worsen. The common phenomenon is that adults only begin to care about their own aesthetics as they age, improve their social status, strengthen their economic power, and optimize their standard of living, so uneven teeth also begin to cause problems for adults, but can adults be orthodontic? The development of modern orthodontic technology and braces, adults can be fully orthodontic, adults generally cooperate better when orthodontic, can be successfully completed according to plan, adult growth stopped, the development of treatment plans and the completion of the effect of predictability is higher, the effect is also easier to achieve. It is just that orthodontic treatment for adults has its own peculiarities, tooth movement is different from that of children, and adults often suffer from different degrees of oral diseases, such as caries, periodontal disease, temporomandibular joint disease, etc., which can complicate the treatment. Therefore, clinical treatment techniques are more demanding, sometimes requiring the cooperation of doctors from several departments to complete, in addition to the need for adults to maintain a longer period of time after orthodontic treatment.