Invasive cervical resorption: clinical management of necrotic pulp.

Invasive cervical resorption (ICR) is a pathologic and aggressive form of external root resorption that affects a small percentage of the population. Its etiology remains unclear and is considered multifactorial, involving trauma, orthodontic treatment, and internal bleaching, among other factors. This case report describes the clinical management of a patient diagnosed with class 3Ap ICR in the maxillary left canine. Cone beam computed tomography was crucial for diagnosis and treatment planning. The treatment included endodontic therapy, surgical intervention, and restoration with bioactive resin containing surface-treated prereacted glass ionomer filler. Follow-up after 6 months showed clinical and radiographic treatment success, with no signs of recurrence. This report highlights the importance of early diagnosis and interdisciplinary management of ICR to preserve affected teeth and avoid extraction.