Since the 1980s, with the continuous reform and opening up of China, orthodontics in China has ushered in a period of rapid development. Many scholars studied abroad and introduced square wire arch technology, Begg fine wire arch technology, straight wire arch technology, functional orthodontic appliances and technology, etc. The treatment techniques and levels of orthodontists around China have been improving. In recent years, the orthodontic treatment of malocclusion has increased with the number of adult patients, and more and more patients are pursuing the aesthetic effect of the orthodontic process without exposing the aligners, and lingual braces are naturally favored. As the name implies, lingual braces are orthodontic devices affixed to the lingual side of the teeth, completely concealing them from others and allowing for improvement in malocclusion, hence the term invisible braces in the true sense of the word. There is a large variation in the morphology of the lingual side of human teeth, and the archwire is difficult to bend and adjust, requiring a high level of skill, which is not easy to master. In the past, lingual braces were less comfortable than labial braces because of their large size and significant tongue irritation. In recent years, personalized lingual orthodontic appliances are designed and manufactured through computer-aided design and computer-aided manufacturing technology, effectively overcoming the inherent limitations of the original lingual orthodontic technology. It has become a highly used orthodontic technique in developed countries and large cities in China, and is very popular among patients. Personalized lingual braces improve patient comfort, reduce the rate of bracket loss, simplify clinical operations, and achieve the same orthodontic effect as labial braces.