Oral and maxillofacial surgery covers the range from the base of the skull to the supraclavicle, dealing with tumors, cysts, fractures, and lymph node dissection within this range. Some operations require skin flaps from the arms and calves, and skin flaps from the ilium. , Fibula bone removal. In layman's terms, they are responsible for operating the head, face and neck, and have higher requirements for suturing and reconstructing the appearance. For example, we perform a total maxillary resection for maxillary sinus cancer. The incision is from in front of the ear, from the lower eyelid along the philtrum of the nose to the corner of the mouth. After opening half of the face, use a jigsaw to cut out the entire maxillary bone. Then a titanium plate is used to support the eyeball, and a skin flap is taken from the calf to repair the tissue surface after the maxillary bone is removed.

Then use the finest nylon thread to suture in position, with a needle pitch of about 2 to 3 mm. Dentistry mainly solves dental, periodontal, occlusal and intraoral mucosal problems