Description:

The X7400421RF EDGEFILE X7 .04 #40 21MM is a state-of-the-art rotary endodontic file designed to enhance control, efficiency, and safety during the shaping of root canals, especially for shorter canals that necessitate larger apical diameters. As part of the EDGEFILE X7 line, this file is produced using FireWire™ heat-treated nickel-titanium (NiTi) alloy, known for impressive flexibility, controlled memory, and increased resistance to cyclic fatigue. These material characteristics reduce the likelihood of file breakage and enable the tool to follow the natural curvature of root canals, leading to safer and more consistent procedures. With a #40 tip size, .04 taper, and a working length of 21mm, this file is ideal for anterior teeth and premolars where accurate apical enlargement is vital. The moderate .04 taper allows for conservative removal of dentin, preserving the structural integrity of the tooth. This approach facilitates comprehensive cleaning and optimal irrigation during treatment. The non-landed, square cross-sectional configuration delivers enhanced cutting efficiency with minimal engagement with canal walls, thus lessening torsional stress and enabling smooth, controlled file progression. This design improves debris evacuation, aiding in maintaining canal patency and lowering the chances of ledging, blockage, or transport. Clinicians experience exceptional tactile feedback and easy navigation, which increases precision and minimizes operator fatigue. The file's dependable cutting action contributes to shorter treatment durations and greater patient comfort. Fully compatible with a variety of rotary endodontic systems, the X7400421RF EDGEFILE X7 integrates effortlessly into different clinical routines. Whether employed by general dentists or endodontic specialists, this file consistently provides safe and efficient shaping results, promoting predictable outcomes in root canal therapy and enhanced patient care.