Many inflammations in the oral cavity have common causes. These include wound infections and soft-part infections as a result of

• Surgical procedures and injuries
• Tooth extractions
• Infected root canals
• parodontal pockets
• Dentitio difficilis (complicated dentition)

The self-healing tendency of oral tissue is usually excellent. The causes of delayed wound healing are usually penetrated bacteria or accumulated wound secretion. Basic systemic diseases of the organism can further interfere with or complicate wound healing (e.g., diabetes, blood diseases). Swelling and complicated wound healing can even occur under almost sterile conditions after surgical tooth extractions, root tip resections or cyst operations. A postoperative swelling on the following day may be the result of tissue irritation. These swellings respond well to cooling. If they continue to deteriorate a day later, bacteria combat and drainage is started. Antibacterial therapy can follow locally via rinsing or systematically via antibiotics. Improved secretion drainage is achieved by partially opening the sutures and inserting strips of gauze, if required.