Recent Advances in Photodynamic Therapy in the Treatment of Dental Diseases

Photodynamic Therapy (PDT) is a new technology that utilizes the photodynamic effect for disease diagnosis and treatment. Its action is based on the photodynamic effect. It is a kind of photosensitization reaction accompanied by biological effects with the participation of oxygen molecules. The process is that specific wavelength laser irradiation causes the photosensitizer absorbed by the tissue to be excited, and the photosensitizer in the excited state passes the energy to the surrounding oxygen, generating highly reactive singlet oxygen, which undergoes oxidative reaction with neighboring biological macromolecules to produce cytotoxicity, which leads to cellular damage and even death. Current research shows that photodynamic therapy shows great advantages in the treatment of caries, periodontal disease and oral squamous carcinoma. This paper mainly provides a further overview of the current status of research at home and abroad on the application of photodynamic therapy in the treatment of dental diseases in recent years.