Yes, the long curve mandibular angle osteotomy is safe and reliable. Mandibular angle plastic surgery can restore the normal shape of mandibular angle by removing the protruding part of mandibular angle, and make the face become a beautiful oval or oval face. The characteristics of mandibular angle plastic surgery are mainly manifested in safety, rapid recovery and pain reduction. The most important thing is that you can make specific choices according to your specific facial conditions. Through extraoral approach, intraoral approach and combined approach, you can effectively improve your face shape, make your face curved and smooth, and truly realize the oval face.