Document Type : Case Reports
Authors
1
Dept. of Endodontics, Iranian Center for Endodontic Research, Research Institute for Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
2
Researcher, Iranian Center for Endodontic Research, Research Institute for Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
3
Iranian Center for Endodontic Research, Research Institute for Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
10.30476/dentjods.2026.111292.3028
Abstract
Invasive cervical root resorption (ICRR) is a challenging form of external root resorption with no established standard treatment protocol. This report describes the management of a maxillary right canine diagnosed with a class 3 ICRR lesion. The patient presented with discomfort and pain in the affected tooth, which exhibited no identified risk factors aside from traumatic occlusion. Clinical examination revealed a composite resin restoration, pronounced wear facets, pain on percussion, lack of response to pulp sensibility tests, and normal probing depths. Radiographic evaluation identified a resorptive lesion beneath the cemento-enamel junction (CEJ) in the coronal third of the mesial root wall, accompanied by adjacent interdental bone resorption. The case was managed using a non-surgical internal approach combined with root canal therapy. The defect was restored with calcium-enriched mixture (CEM) cement and composite resin. At the 9-year follow-up, the radiograph demonstrated complete healing of the periodontium and regeneration of the interdental bone. At the 11-year follow-up, the tooth remained functional and asymptomatic with a healthy periodontium. This case highlights the efficacy of a non-surgical internal approach in managing ICRR with pulp involvement and further emphasizes the potential of calcium silicate-based endodontic biomaterials to promote the healing of resorptive defects and the regeneration of adjacent alveolar bone.
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