| Summary: | To describe the management of endodontic-periodontal lesion attributable to palatogingival groove extending from crown to root surface, contributing to severe periodontal breakdown in relation to maxillary central incisor. Palatogingival groove may act as a nidus of plaque accumulation and contribute to the pathogenesis of endodontic-periodontal lesions. The management of such lesions requires an integrated interdisciplinary approach with careful application of endodontic and periodontal surgical procedures. In the present case, the patient presented with advanced bone loss and negative pulpal response in relation to left maxillary central incisor. The etiology of such isolated periodontal lesion could be attributed to palatogingival groove as there was no history of endodontic pathology or trauma. The treatment plan included endodontic treatment followed by surgical exploration, elimination, and sealing of palatogingival groove using biodentine.
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