Single-Session Combined Endodontic-Periodontal Management of External Cervical Resorption: A 28-Month Clinical and CBCT Follow-Up.

OBJECTIVES

External cervical resorption (ECR) is a progressive condition that may compromise both periodontal and pulpal tissues. This report describes the outcome of a single-session combined endodontic-periodontal approach for the management of ECR in a previously treated maxillary central incisor.

CASE PRESENTATION: A 41-year-old male presented with ECR affecting the maxillary left central incisor, associated with previous trauma, a sinus tract, and defective root canal treatment. Cone-beam computed tomography (CBCT) was used for diagnosis, classification, and treatment planning. A single-session approach combining endodontic retreatment and periodontal surgery was performed.

RESULTS

At 28 months, the tooth remained asymptomatic and functional, with clinical periodontal stability and radiographic periapical healing. However, no new bone formation was observed in the cervical buccal bone plate, and a residual probing depth of 5 mm persisted without bleeding or mobility.

CONCLUSIONS

A single-session combined approach may be a reasonable option for moderate ECR when adequate access and defect sealing are achievable. In this case, the outcome reflected disease control and structural stability rather than complete tissue regeneration.