Maxillary angle plastic surgery in St. Jiarong's facial sculpture center refers to the principle of combining long curve osteotomy of mandibular angle, curved surface resection of external bone plate to adjust bone thickness (if the chin is too wide, it will cooperate with T-bone fracture of chin) and fine grinding and cutting after osteotomy. Therefore, compared with the traditional mandibular angle plastic surgery, the mandibular angle plastic surgery in Shengjiarong Facial Sculpture Center is more suitable for all types of mandibular angles, and the frontal and lateral effects can be maximized.