Description:

The X7400621RF EDGEFILE X7 .06 #40 21MM is a sophisticated rotary endodontic file designed to enhance shaping performance, control, and safety during root canal treatments, particularly in shorter canals needing larger apical sizes. As part of the groundbreaking EDGEFILE X7 line, this file is made from FireWire™ heat-treated nickel-titanium (NiTi) alloy, celebrated for its remarkable flexibility, controlled memory, and high resistance to cyclic fatigue. These characteristics minimize the chances of instrument breakage and enable the file to conform closely to the natural curves of the canal, promoting safer and more reliable instrumentation. With a #40 tip size, .06 taper, and a 21mm working length, this file is ideal for anterior teeth and premolars that require effective apical enlargement. The .06 taper enhances dentin removal while preserving the tooth structure, allowing for thorough cleaning and preparation of the canal. The file’s non-landed, square cross-sectional design provides aggressive yet controlled cutting efficiency, reducing contact with canal walls and lessening torsional stress. This feature promotes smooth file movement and efficient debris removal, maintaining canal patency and decreasing the likelihood of ledging, blockage, or canal transport. Practitioners enjoy excellent tactile feedback and smooth navigation, which improves precision and reduces fatigue during procedures. The durability of the file and its consistent cutting performance help to reduce chair time and enhance patient comfort. Compatible with most rotary endodontic motors, the X7400621RF EDGEFILE X7 integrates easily into a range of clinical workflows. It is suitable for both general practitioners and endodontic specialists, providing dependable, efficient, and safe shaping results to support predictable outcomes in root canal therapy and high-quality endodontic care.