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12 Oct 2023 | Australasian Dental Practice

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Kerr launches matching gutta percha points for their ZenFlex™ NiTi rotary shaping files - High cutting efficiency and minimally invasive design

Leading innovator of endodontics technology, Kerr Dental, has announced the launch of the matching gutta percha points for their ZenFlex™ NiTi Rotary Shaping File. ZenFlex features high cutting efficiency, an ideal balance of strength and flexibility and a minimally invasive design. Initial comparative studies against other leading files on the market indicate that ZenFlex delivers exceptional resistance to torsional stress and cyclic fatigue, while offering the flexibility and controlled memory to accommodate even the most complex canal anatomies.


"ZenFlex has been designed to balance strength with flexibility, as well as achieve high cutting efficiency, all while being minimally invasive," said Monique Bambagiotti, Marketing Manager at Kerr Dental. "These are made possible due to the proprietary variable heat treatment technology used in ZenFlex. Now with the matching gutta percha points, our system is complete."

Through this heat treat process, ZenFlex provides the strength and flexibility to accommodate up to 90-degree curves. ZenFlex additionally has exceptional controlled memory to maintain its pre-curved shape to better follow even than most challenging canal anatomies.

In recent comparative tests, ZenFlex delivered greater resistance to cyclic fatigue than other files, resulting in a longer time to failure. Additional tests showed that ZenFlex is as resistant or more resistant to torsional stresses despite having a smaller maximum flute diameter and smaller mass.

"In tests conducted by leading endodontist Dr Stephen L. Buchanan, against other recognized files on the market, ZenFlex did a better job reaching the full working length of severely curved canals," explained Brian Ho, Kerr Dental Global Product Manager.

ZenFlex offers endodontists a minimally invasive shaping file option, with a 1mm maximum flute diameter and its non-cutting tip. Combined, these features help increase control during the root canal procedure and preserve the tooth's structural integrity.

"With its high cutting efficiency, balance of strength and flexibility and minimally invasive design features, ZenFlex is the shaping file endodontists have been waiting for," Mr Ho said. "We are excited to launch this next-generation product and look forward to hearing feedback from doctors and practices around the country."


ZenFlex™ NiTi Rotary Shaping File System

  • Maximum Strength. Minimally Invasive.
    Featuring an ideal balance of strength and flexibility, ZenFlex lets you reach the full working length with reduced risk of breakage while preserving more tooth integrity.
  • High Cutting Efficiency
    Designed with triangular cross section with proprietary heat treatment, ZenFlex exhibits high cutting efficiency that lets you reach the full working length of even complex root geometries.
  • Minimally Invasive
    A maximum flute diameter of 1mm and a non-cutting tip work together to minimize transportation and preserve the tooth's structural integrity.
  • Exceptional Strength
    Resists torsional stress and cyclic fatigue resulting in minimal breakage and reduced transportation.
  • Excellent Flexibility
    Proprietary heat-treatment design delivers excellent controlled memory and flexibility for up to 90˚ curves.
  • Corresponding ZenFlex Gutta Percha Points
    Choose the corresponding size and taper to meet the needs of each root canal procedure.

"ZenFlex shaping instruments have variable-pitch flute angles that prevent them from threading into canals, provide them with enormous chip space between flutes, and help prevent tip breakage. These sophisticated instruments deliver single-file shapes without transporting canals due to their variable-heat treatment. Customizing heat treatment for each file size produces smaller files with more shape memory to prevent unwinding and larger files with remarkable ductility. It also has a 1mm maximum flute diameter in order to better maintain the structural integrity of teeth after RCT, and Kerr's AutoFit gutta percha points fit well to the ends of canal shapes cut by ZenFlex Files." - Dr Stephen Buchanan

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