Flexible Tunnel Technique for Severe Endodontic-Periodontal Lesions

The flexible tunnel technique (FTT) involves creating four vertical incisions and a gum stretch to access deep bone defects extending to the tooth root tip, enabling effective debridement and regenerative procedures. Indicated for severe endodontic-periodontal lesions with deep bone loss, FTT improves access, reduces surgical trauma, and enhances healing outcomes. Applies to endodontic and periodontal surgery.