Photodynamic Therapy: A Novel Ally for Surgical Endodontic Treatment? Case Report

Abstract Introduction: Photodynamic therapy (PDT) has emerged as a powerful tool for conventionalendodontic treatment, capable of eradicating microorganisms present in endodontic infections.Despite this, the use of PDT in the surgical endodontic treatment is not well-known.Case Report: This paper describes the case of a patient with asymptomatic apical periodontitisin a mandibular incisor submitted to surgical endodontic treatment associated with PDT. Afterconventional procedures, photosensitizer methylene blue (۰.۰۱%) was applied to the retrogradecavity for ۳ minutes, followed by irradiation with diode laser (۱۰۰ mW and ۶۶۰ nm) for ۳minutes. Six months after the procedure, the patient was asymptomatic, and the radiographicexamination showed healthy periradicular tissues.Conclusion: The association of PDT with surgical endodontic treatment was effective, suggestingthat this therapy may provide additional benefits to patients when compared to the conventionalsurgical technique. Keywords: Endodontics photodynamic therapy periradicular surgery.