Pathfinder files are essential in endodontics for navigating complex or calcified root canals. These small, flexible instruments help establish a clear glide path before using larger shaping files, ensuring a smoother and safer root canal procedure.They are designed with high flexibility and a fine tip, pathfinder files can bypass obstructions, locate canal openings, and reduce the risk of ledging or perforation. They are typically made from stainless steel for greater control, though nickel-titanium (NiTi) variations offer enhanced flexibility for curved canals. By carefully working with these files in a gentle, watch-winding motion, clinicians can minimize stress on the canal walls and prevent file separation.