The treatment of deviation needs to be decided according to the severity of the patient. If the deviation is mild and has little effect on the face, orthodontic treatment is the mainstay; if the teeth occlusion relationship is basically normal, then there can be no treatment or simple medical cosmetic treatments, such as hyaluronic acid filler and botulinum toxin injection. If the degree of deviation is more serious, the asymmetry between two sides is obvious, affecting the bite function, and has entered the adult stage, growth and development stops, then surgical treatment is needed to assist orthodontics, that is, orthodontics – orthognathic combined treatment.1. Surgical treatment: Surgical modalities vary greatly, and surgical plans are designed according to different situations, including osteotomy of the jawbone, rejoining the jawbone and fixing it, as well as chinoplasty is used to correct chin deviation, bone grafting or prosthesis placement to meet the need for symmetry, soft tissue filling to correct soft tissue developmental deformities, etc. 2. Orthodontics: Although surgery can correct deviation of the jaws and improve the occlusal relationship, orthodontics, i.e., rearranging the teeth, is needed in the stomatology department in order to achieve a satisfactory therapeutic effect. The purpose is to correct the misaligned teeth, align the teeth and adjust the relationship between the upper and lower jaw arches.