With the improvement of dental technology and patients' aesthetic requirements for orthodontic treatment, orthodontic treatment has gradually developed a variety of orthodontic materials and methods from movable brackets and buccal fixed brackets, such as ceramic brackets, self-locking brackets, lingual invisible brackets and bracketless invisible brackets. According to the requirements of different doctors and patients for curative effect, beauty and comfort, more treatment schemes are provided. Yang Dean, Dean of Orthodontics at Simeiqi, Dali, has been engaged in orthodontics for over 10 years, and is good at early childhood correction and adult correction. At present, there are nearly a thousand successful cases of correction.