Flexible Tunnel Technique for Severe Endodontic‑Periodontal Lesions

A novel surgical approach for treating deep bone defects in combined endodontic‑periodontal lesions. The technique uses four vertical incisions and a gum stretch to enhance access, allowing better debridement and graft placement. It has shown improved root coverage and bone regeneration in a 2‑year follow‑up. Applicable to periodontists and endodontists managing complex lesions.