Endodontic file separation is considered the most annoying accident that can face the dentist during his/her daily endodontic practice.
The main problem of having a broken instrument inside the root is the lack of sufficient instrumentation, disinfection, and therefore a proper obturation of the treated root canal which will influence the overall prognosis of endodontic treatment.
The management of such accident needs sufficient understanding of the type and geometry of broken file, location and size of the file, amount of canal disinfection before file separation, and length with amount of engagement with canal walls. After thorough clinical and X ray examination, treatment plan must be based upon three options: bypassing, removal, or leaving the broken file inside the canal with monitoring.
The objective of this presentation is to highlight the factors contributing to file separation and how to avoid it along with a description of a novel technique for bypassing a broken file, and how to remove a broken file when indicated through many clinical cases with illustrations and videos.