A confusing endodontic case with retrograde periodontitis.

Abstract

Endodontic-periodontal lesions are often observed in clinical situations. Although endodontic-periodontal lesions are encountered, they may pose difficulties for the clinician in diagnosis and may complicate the treatment. Diagnosis is often challenging because these diseases have been primarily studied as separate entities, and each primary disease may mimic the clinical characteristics of the other disease. In this report, a simple classification of endodontic-periodontal lesions is demonstrated, and presents a case of endodontic-periodontal disease in an immature tooth with a vertical bone defect showing retrograde periodontitis in which successful results were obtained by using infected root canal treatment and apexification with Vitapex? containing calcium hydroxide.