Endodontic Management of a Chronic Periapical Abscess in a Maxillary Central Incisor with an Immature Root Apex Using Platelet-Rich Fibrin: A Case Report

Abstract

Platelet-rich fibrin (PRF) has been used for several treatments in dentistry. The present study reports theclinical and radiographic outcomes of a root canal treatment of a necrotic immature maxillary central incisor using PRF. A 15-year-old female patient presented with a diagnosis of maxillary left central incisor pulpnecrosis with open apex and periapical radiolucency and extraoral sinus tract. Two months after a two-visitroot canal treatment using calcium hydroxide as a root canal dressing, no clinical symptoms were observed,and the previous sinus tract at the patient’s nostril had completely disappeared. In the subsequent visit, thePRF was prepared and delivered into the root canal. The PRF layer was covered with collagen membrane andthen sealed with white mineral trioxide aggregate. One year later, the patient remained asymptomatic. Radiological examination using cone beam computed tomography (CBCT) showed that the destructive buccalalveolar bone was completely repaired.