There are several surgical methods for mandibular angle reduction, such as jaw resection, non-osteotomy resection and non-masseter muscle reduction. You need an expert to diagnose your face. You can consult the famous Korean experts of Panjiayuan Guangxi Building in Korea. I heard that he has more than 20 years of plastic surgery experience. He is personally responsible for this kind of mandibular angle reduction plastic surgery, and the main projects are facial contour plastic surgery and nasal plastic surgery.