If the patient is generally in good condition or stable after treatment. At this time, oral and maxillofacial wounds should be treated as early as possible, and early surgical treatment is the key to prevent infection and promote early wound healing. Because of the rich blood supply, strong anti-infection ability and repair ability of oral and maxillofacial region, the time limit for initial debridement and suture is wider than that of other parts. Wounds 48 hours or even a few days after injury can be sutured in one stage after debridement as long as there is no obvious suppurative infection.

Thoroughly clean the wound during the operation, and clean up all foreign bodies such as bacteria, foreign bodies and tissue fragments in the wound as much as possible. After the wound is cleaned, it is generally only necessary to trim the broken wound edge slightly, and don't sacrifice too much tissue. Suspicious tissues or large free tissues with only a few pedicles should be preserved. After washing and soaking in antibiotic solution, small pieces of free tissue can be stitched back in place. For a large area of free tissue, the blood vessels should be free and anastomosed. During the operation, we should also pay attention to whether there are deep tissue injuries, such as nerves, blood vessels, parotid glands, catheters, etc., and whether there is communication with adjacent sinus passages, such as maxillary sinus, nasal cavity, pharyngeal cavity, etc. If there is, we should deal with it accordingly.

When sewing, it is necessary to minimize trauma, pay attention to tissue alignment, and sew in layers. So as not to form too many scars and deformities.