Palatogingival Groove - Cause of Root - Canal Failure - A Case Report.

Morphological defects occurring in dental structure can be sometimes predisposing factors for the onset of inflammatory processes in the periodontal and/or pulpal tissues. Palatogingival groove is one such defect, most frequently found on the lingual surface of maxillary laterals. They are easily overlooked as aetiologic factors, as these grooves are covered by periodontal tissues. This case report discusses successful management of a root-canal treated maxillary lateral incisor with an associated radicular lingual groove having persisting inflammatory condition. The management included a combination of endodontic therapy and periodontal regenerative techniques.