The latest addition to EdgeEndo’s line of NiTi file systems, EdgeOnyx is a simple, minimally invasive file system with a stiffened shank that improves tactile awareness and visibility
Heat-treated files are a mainstay in most endodontic workflows thanks to their enhanced flexibility. But while flexibility is a good thing when navigating canals, it can sometimes create a subtle “wobble” sensation during instrumentation. EdgeOnyx, the newest file in EdgeEndo’s extensive lineup, was designed to meet this challenge by giving clinicians flexibility where they need it—and stability where they want it.
A 'Goldilocks' File
“The innovative heat-treatment of EdgeOnyx reduces that ‘wobble’ because the shank portion goes through a proprietary stiffening process,” shared Dr. Gianluca Gambarini, an international lecturer, researcher, and head of endodontic and restorative dentistry at the Sapienza University of Rome Dental School. “Such a unique feature provides a perfect balance between stiffness and flexibility, making instrumentation easier and more effective."
Over 10 years in the making, EdgeOnyx is based on the time-tested design of the company’s original EdgeFile, but with several design changes made to improve performance. The system includes a parabolic cross-section with a maximum fl ute diameter of less than 0.08 mm, as well as a 0.04-mm taper for simplifi ed obturation, making it a robust yet minimally invasive solution that Dr. Gambarini finds advantageous for long-term tooth survival.
“Preserving pericervical dentin helps maintain the strength of the tooth and supports long-lasting restorations, reducing the risk of fractures over time,” he shared.
An antireflective black handle and shank reduce glare under a microscope while allowing for quick file and depth identification.
Find, Follow, Finish
With an antiledging safety tip for navigating curvatures and a straightforward file assortment and protocol, EdgeOnyx brings a “find, follow, and finish” approach to endo treatment.
“These files are easy to use—smoothly and safely progressing to the working length even in the most complex cases,” Dr. Gambarini said. “Their differentiated approach uses 1 flexible file to find the canal orifice and reduce or eliminate coronal interferences. This allows the next file to progress more easily and safely to the working length, which creates a proper glide path with a small, tapered instrument. The final shape is then completed with a third file.
“The unique features of EdgeOnyx files give them a perfect balance between efficiency and safety. They are the ideal solution for minimally invasive treatments and curved, calcified, narrow canals.”
