Oral flap surgery involves cutting the face, which means that an incision needs to be made in the skin of the face. If you usually do not pay attention to oral hygiene, caused by oral periodontal disease, or have oral cancer, etc., you should go to the regular hospital with a professional doctor to do flap surgery treatment, usually in the face to make an incision. If there is a large area of necrosis after oral flap surgery, you should also cooperate with the doctor to do flap surgery on the face again and transplant a new flap. If oral flap surgery is really needed, it is recommended to go to a specialized dental hospital to minimize the risk of surgery and avoid postoperative complications. After surgery, we must follow the doctor’s instructions to take care of the wound, keep the area clean, and change the medicine in time, so as not to cause wound infection, which is not conducive to the healing of the surgical wound. Normally, you should pay attention to brushing your teeth in the morning and evening, rinsing your mouth before and after meals, and developing good oral hygiene habits to ensure oral hygiene.