With the rapid development of science and technology, the wide application of science and technology in the field of medicine has led to the continuous improvement of medical standards, such as the development of oral biology, biomechanics and material science, which in turn has promoted the continuous improvement and development of orthodontic theory and technology, laying the foundation for adult orthodontics. The technical difficulties of adult orthodontic treatment have made a major breakthrough and have been widely successful; at the same time, due to the improvement of living standards and the extension of life expectancy of the population, people begin to pay attention to improving the quality of life and enhancing the aesthetic concept after the basic life requirements such as clothing, food, housing and transportation are met, and the number of adults requesting orthodontic treatment is increasing. Of course, the most crucial thing is that orthodontics for adults is necessary to make the teeth bite stable, delay the loss of teeth, prolong the life of teeth and make the teeth function better, which is also a manifestation of social progress and improvement of civilization. In the last two decades, the number of adult patients requiring orthodontic treatment has been increasing year by year, in the United States, 25% of orthodontic patients are adults, and the trend of adult orthodontics in China is also increasing. Of course, for both children and adults, aligning teeth is not the only goal of orthodontics. However, the overall goal of orthodontic treatment must take into account coordination, stability and aesthetics, including correction of the abnormal occlusal relationship between the upper and lower jaw teeth, and the incongruity between the teeth and the craniofacial relationship, such as “protrusion”, “retrusion”, “receding jaw” and other deformities, as well as misaligned teeth. At present, in some orthodontic treatment, aligning the front teeth as the only goal of orthodontic treatment, as long as the front teeth are aligned, other malocclusion, arch relationship, molar relationship, jaw relationship all regardless, even though the teeth are aligned but the upper and lower jaw bite relationship is not improved, or even worse, resulting in new malocclusion, which is incorrect and extremely irresponsible, will cause great harm to patients, such as Poor bite, root resorption, or even loose and lost teeth. Because of the high technical content of orthodontics, I hope that patients should consult carefully before doing orthodontics, to the regular medical sector, to find a real orthodontist with orthodontic qualifications and orthodontic technology to do orthodontic treatment, after all, orthodontic treatment of teeth is not the same as buying goods, once done failure is difficult to recover, and will affect the life of the person.