Oral surgery, full name of oral and maxillofacial surgery, is a branch discipline under the oral sciences, many of the larger hospitals have oral and maxillofacial surgery separate branch department, oral and maxillofacial surgery is the most important for the oral and maxillofacial surgery invasive operation, generally include the following parts: 1, the common alveolar surgery, alveolar surgery is the work of the so-called extraction of teeth, all the teeth, including anterior teeth, posterior teeth, milk teeth, wisdom teeth, extraction is carried out by oral surgery. 2, oral surgery contains surgery, including cysts, cancer, tumor surgery is completed by the oral surgery. All teeth, including front teeth, back teeth, milk teeth, wisdom teeth, extraction is carried out by the oral surgery. 2, oral surgery contains surgery, including cysts in the oral cavity, cancer, tumor surgery is carried out by the oral surgery. Oral often need for cleft lip and palate patients for surgical treatment, also by the oral surgery doctor to complete.