Mandibular angle grinding plastic surgery is to grind the mandibular angle and the outer cortical bone of the mandibular body by bone grinding, without cutting the mandibular angle, and sometimes the mandibular angle can be ground a little or raised slightly by using a suitable grinding head, thus achieving the purpose of changing the face shape. Its characteristics are mainly manifested in safety, quick recovery and pain relief. Most importantly, it can effectively make specific choices according to the specific facial conditions of individuals. In addition, oral surgery can effectively improve the face shape, make the facial curvature smooth, and truly realize the oval face. Of course, the biggest advantage of using this method is that it has little trauma to the skin and will not leave scars, especially after surgery.