Shengjiaxin Facial Sculpture Center adopts long arc mandibular angle osteotomy, which is safe and reliable. Mandibular angle plasty refers to the principle of combining long curve osteotomy of mandibular angle and curved surface resection of external bone plate to adjust bone thickness (if the chin is too wide, it will cooperate with T-shaped fracture of chin), and then finely grinding and cutting after osteotomy. Therefore, compared with the traditional mandibular angle plastic surgery, the mandibular angle plastic surgery in Shengjia Xinyan Sculpture Center is more suitable for various types of mandibular angles, and the frontal and lateral effects can be maximized.