Three Case Reports Of Pre-Eruptive Intracoronal Resorption

Pre-eruptive intracoronal resorption (PEIR) is a rare and idiopathic condition characterized by developmental lesions that typically occur at the dentinoenamel junction and extend into the dentine of unerupted/erupting teeth. This report documents the treatment and follow-up of three PEIR cases, summarizing the clinical experience in managing such patients. This report presents three 6-year-old female patients diagnosed with PEIR. Two cases involved pulp, while one didn’t; all were asymptomatic immature mandibular molars identified through routine radiographic examination. Case-1: This case was diagnosed prior to tooth eruption.The affected tooth was surgically exposed while still located subgingivally. Minimal removal of softened dentine was performed, followed by direct pulp capping. The patient underwent periodic reviews for six years post-operatively. Successful preservation of the pulp and satisfactory root development were achieved. Case-2: The tooth exhibited discoloration and partial eruption, with a 0.5mm defect located on maxillofacial surface. Gingivectomy and pulpotomy was performed to preserve the vitality of the pulp and complete root development. Case-3: In this case, significant lesions remained undetected until the third review. The progression of these lesions was gradual, and the eruption of the affected tooth was imminent. As a result, the tooth was promptly restored, and follow-up reviews were scheduled after eruption. PEIR treatments vary by severity. In this study, three cases used targeted strategies to preserve vital pulp early, ensuring normal tooth development. Early diagnosis and appropriate management hold significant importance for improving the prognosis of PEIR.