Photodynamic therapy (PDT) has developed rapidly in basic and clinical research, and its therapeutic prospects have received increasing attention. PDT has the advantages of minimally invasive, low toxicity, high selectivity, good reproducibility, protection of appearance and vital organ function, and has become a treatment. With the development of medicine, the field of application of PDT becomes more wildly, and brings a new direction for the treatment of oral diseases. This article reviews the basic principles, treatment elements and research results of PDT in the treatment of oral diseases.
光动力疗法（PDT）在基础理论和临床应用研究领域发展迅速，其表现出的治疗前景越来越受到广泛的重视。PDT具有微创、低毒副作用、高选择性、重复性好、可保护容貌及重要器官功能等优点，已经成为一种新的治疗手段。随着医学的发展，PDF的适用领域越来越广泛，为口腔疾病的治疗带来了新的研究方向。本文对PDT的基本原理、治疗要素及在口腔疾病治疗中应用的研究成果进行综述。.
Keywords: oral diseases; photodynamic therapy; treatment.