Complex endodontic mishaps demand more than technical ability; they require biologic understanding, precise diagnosis, advanced armamentarium, and sound clinical judgment. Teeth that were once considered hopeless can often be predictably managed using modern microsurgical principles, enhanced magnification, and contemporary biomaterials. This workshop explores the art and science behind managing challenging retreatment scenarios, perforation defects, and canal ledges. Participants will analyze the etiology of procedural errors, decision-making pathways, and prognosis-driven treatment planning. Emphasis will be placed on conservative strategies that preserve tooth structure while maximizing disinfection and long-term success. Through clinical protocols, video demonstrations, and case-based discussions, attendees will gain practical guidance in regaining canal patency, repairing perforations with bioactive materials, and navigating complex anatomy safely. The program aims to empower clinicians to transform high-risk situations into achievable and rewarding outcomes.