Bone grinding is a minimally invasive bone grinding equipment to make a small incision inside the mouth to polish the jaw angle, so that the Chinese character face becomes a melon face, which is more feminine and gentle. Surgical procedure: 1, cut in the inner side of the mouth close to the position of the angle of the jaw, from the oral cavity to turn the facial skin and muscles, muscle and periosteum separation, the need for surgery to expose the bone parts; 2, according to the design of the amount of bone grinding, drawing a grinding line; 3, with a long-handled oscillating saw, according to the line of the grinding of the angle of the mandibular mandibular amputation, generally can be arched amputation of the range of 3 to 4 cm long, 1 to 2 cm high, to fix grinding Suture the wound and bandage. Applicable people: Suitable for people with simple mandible-like hyperplasia, square face with jaw angle close to 90°, or people who are too wide in the lower part of the face. Advantages: 1, small trauma, safety, no scars outside the mouth; 2, the surgery can simultaneously remove the cheek fat pads and jaw augmentation, as well as tighten the skin of the face. Side effects: 1. Temporary swelling; 2. If bone grinding is excessive, a sunken face or facial muscle paralysis may occur. Precautions: 1, prevention of infection, keep the mouth clean, appropriate use of antibiotics; 2, 24 hours after surgery, upper and lower jaw rubber band fixation, facial rubber band elastic fixation for 4 to 6 weeks; 3, the first 3 days after surgery, it is best to take ice packs and eat fluids, until to determine the wound is healed to eat soft food, if you want to return to the usual diet, you have to wait for 3 weeks later; 4, after eating, use mouthwash mouthwash; 5, do not do facial surgery for 3 months; 5, do not do facial surgery for 3 months. Do not do facial cosmetic massage within 3 months, do not rub the surgical area, and do not take part in sports that make the face subject to vibration or blows. Recovery time: Bone grinding and face slimming surgery because the face needs pressure bandage, generally the first 3 days after surgery, soft tissue swelling is more obvious, the third day after the swelling began to subside, 7 days to remove the stitches when the edema is basically subsided, but there will still be some slight soft tissue swelling phenomenon, to completely and thoroughly to achieve the best results need about 2 months of time, depending on the person.