Ozone therapy is a procedure that effectively destroys bacteria, viruses, and fungi. It helps heal oral mucosal changes such as canker sores or ulcers, which can occur in individuals who wear dentures or orthodontic appliances. It also speeds up the healing of cold sores and, when applied at the early stages of the disease, can stop their development. Ozone therapy is painless, quick, and free from complications. It requires the use of a special device – an ozone generator, e.g., PROZONE.