Mandibular angle plasty is to remove the oversized, square and everted mandibular angle through oral grinding, and peel off the masseter muscle from the mandible through the same incision and partially break it, so that it loses its contraction function and gradually shrinks. The angle of mandibular angle is small, and there are many bones. You can also cut the mandibular angle while grinding the bones. The patient's facial contour is more in line with aesthetic standards, and it can also show the charm and gentleness of women, so as to achieve a perfect effect, which may be better than the expected effect of mandibular angle plastic surgery. There are several cases suitable for mandibular angle plastic surgery: 1, and the mandibular angle is obviously hypertrophy and eversion, which is an obvious "square face" or "trapezoidal face". 2. Unilateral or bilateral mandibular angle is prominent, and both sides are asymmetrical. 3. The proportion of facial width is not harmonious, and the distance between the two mandibular angles is close to or greater than the width between the two zygomatic processes. 4. Women's face has obvious male characteristics, which affects their appearance and personal aesthetic psychology. Mandibular angle plastic surgery can completely remove the inner and outer layers of the redundant mandible, and then continue to polish and thin the edge of the external plate of the redundant mandible, which can fundamentally solve various serious mandibular width problems and easily reduce the appearance of both sides of the face by more than 1.5 cm. The masseter muscle and buccal fat pad are removed as needed, and under the premise of ensuring safety, the curvature of the side surface is smooth, forming a real "melon face".