Use of endodontics and bone regeneration in the treatment of external root resorption: a clinical case report
Keywords:
ENDODONCIA; REGENERACIÓN ÓSEA; RESORCIÓN RADICULAR., ENDODONTICS; BONE REGENERATION; ROOT RESORPTION., ENDODONTIA; REGENERAÇÃO ÓSSEA; REABSORÇÃO RADICULAR.Abstract
Introduction: external root resorption is a progressive dental pathology that compromises tooth stability and may lead to the loss of the affected organ, requiring an interdisciplinary approach.
Objective: to describe the therapeutic approach applied in a clinical case of external root resorption.
Case presentation: a 17-year-old male patient with a history of trauma to the upper left central incisor presented with pain during chewing and a vestibular fistula. Clinical examination revealed percussion sensitivity and local inflammatory signs, while tomography showed external root resorption and a diffuse bone lesion. Treatment included endodontic therapy with chlorhexidine irrigation, intracanal medication with calcium hydroxide, and obturation using Biodentine bioceramic. Subsequently, apical surgery was performed through a full-thickness flap, curettage of the lesion, and apical sealing with mineral trioxide aggregate. Bone regeneration was achieved using bovine-derived xenograft and a pericardial collagen membrane, followed by mattress sutures to ensure proper healing. Clinical and radiographic follow-up demonstrated symptom resolution, bone recovery, and adequate periradicular healing, confirming the effectiveness of the applied protocol.
Conclusions: the combination of endodontics, apical surgery, and bone regeneration proved to be an effective strategy for managing external root resorption. This approach promoted tissue repair and functional preservation of the tooth, highlighting the importance of early interventions and integrated protocols to optimize prognosis in young patients with traumatic history.
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