Regenerative Endodontic Treatment of an Immature Permanent Tooth with Trauma-Induced Arrested Root Development: A Case Report

Pulpal necrosis in permanent teeth with trauma-induced incomplete root development complicates treatment planning because of the presence of an open apex and thin dentinal walls. This case report aimed to evaluate the clinical and radiographic outcomes of regenerative endodontic treatment performed in a maxillary left central incisor with trauma-induced incomplete root development. In a 16-year-old female patient, an open apex, arrested root development, and periapical pathology were identified in tooth #21. Regenerative endodontic treatment, including canal disinfection, calcium hydroxide medication, induction of apical bleeding, and placement of a coronal barrier with MTA NeoPUTTY, was performed. At the 6- and 9-month follow-ups, the patient remained asymptomatic, and radiographic findings indicated continued root development. Regenerative endodontic treatment may be considered an effective approach for managing permanent teeth with trauma-induced incomplete root development.