10/05/2026
Yet another interesting case !!
Failed endo,
When you evaluate the case and go through the preoperative radiograph, you would find multiple reasons for failure and often neglect a crucial one!!
An unfilled isthmus in endodontics is a significant, often overlooked, cause of root canal treatment failure. It is a narrow, ribbon-shaped connection between two main root canals or roots that contains pulp tissue.
Because of its small size and complex anatomy, it frequently fails to be cleaned, shaped, and obturated, leaving a reservoir for bacteria and organic tissue that can lead to persistent infection.
Now this case was mainly tricky due to the fact that the case wasn't a typical c shaped anatomy, rather a root trunk/ pre furcation isthmus that was significantly clogged with debris and necrotic tissue.
Keep scouting ! Cheers.