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Laurence Bohan
Content Writer
Laurence Bohan
Content Writer

Laurence is a copywriter and trained journalist. His passion is creating insightful and educational content for dental professionals of every level. Outside of work, he enjoys watching sport, quizzing and spending time with his family.

The introduction and development of nickel titanium (NiTi) files has been one of the biggest advancements in dentistry in recent decades. Having overtaken traditional stainless-steel files, NiTi files are the now easily the most widely used file for root canal thanks to the superior flexibility they provide. But not all NiTi file systems are the same. In similar fashion to the growth of NiTi files, EdgeEndo has swiftly caught up with established names to become one of the world’s most popular endodontic file brands in little over 10 years.

How has this happened? The key lies in EdgeEndo’s unmatched file strength and flexibility.

How Strong Are EdgeEndo Files?

As good as NiTi files are, they do come with an increased risk of failure (cyclic fatigue or torsional failure) compared to stainless steel. Cyclic fatigue occurs when the file is rotated continuously in a curved canal by compressive and tensile stresses. Torsional failure occurs when the tip of the file is locked but its shank continues to rotate.

Both occurrences can cause the file to exceed its limits of elasticity, deform and eventually separate. The more curved the canal, the greater the chances of this happening. To combat this and minimise the chances of failure, many NiTi files are now heat treated to modify and enhance the mechanical properties of the material.

The unique heat-treated technology used in EdgeEndo files gives them twice the resistance to cyclic fatigue versus comparable heat-treated files on the market.

This is according to a cyclic fatigue test carried out by EdgeEndo using several well-known files.
The full results of the study can be viewed here.

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How Flexible Are EdgeEndo Files?

Flexibility is the great strength of NiTi files and the reason they eclipsed stainless steel in popularity. Superelasticity and shape memory are the two properties that make NiTi files so flexible, but these characteristics can also be enhanced with heat treatment. Heat-treated NiTi files are extremely flexible. EdgeEndo files can even achieve 90° canal curvature which is claimed to be unmatched on the market by its manufacturer. Heat treatment allows flexibility to be maintained in the canal with a lower risk of the alloy bouncing back into shape and putting pressure on the file. Like most NiTi files, EdgeEndo files can be pre-bent to accommodate different canal structures.

Are EdgeEndo Files Compatible With My System?

Switching to different endodontic files can be off-putting if it requires a completely different technique or the files are not compatible with your current handpieces. This is not the case with EdgeEndo. All EdgeEndo files, obturators and points work interchangeably with the system and technique you already use to ensure a seamless transition.

For example, the EdgeOne Fire system works with the same handpieces operated at the WaveOne Gold parameter and the EdgeTaper Platinum system works with the same handpieces operated at the ProTaper Gold parameter. All EdgeEndo products use the universal ISO handle colour scheme to indicate the size of the file.

Several testimonials from dentists who have switched to EdgeEndo files can be viewed here.

Where Can I Buy EdgeEndo Files?

Kent Express is one of the UK’s exclusive EdgeEndo suppliers. All products are available to dental professionals only. All files come with free next working day delivery as standard when you buy online. Free stock offers are also regularly available on EdgeEndo files, obturators and points. Click on the link below to view our current deals.

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