Courtesy of Matthew Brock, DDS, MSD
Shortly after sending him his first packs of EXO Endo files, we received this outstanding feedback from Matthew Brock, DDS, MSD of Southeaster Endodontics:
“After cleaning and shaping the canal system for this tooth I was able to feel that the apex was a size 35 to 40 with .02 tapered instruments. After a 30/.06 EXO File went to length with great ease, I opened the apex to a 40/.02 & then followed with a 35/.06 EXO File without issue (in a 78 degree curvature with a fulcrum pt. of curvature 8mm from the apex, the diameter of the EXO 35/06file the would be .83mm). The EXO File is incredibly flexible when compared with other files on the market. If you had told me I would take a 35/.06 to the apex of a MB root just a few years ago I would have imagined a hogged out canal with no flow, and in the case of this tooth I would have seen disaster written all over it. The EXO File negotiated the canals effortlessly and will remain in my armamentarium.”
We appreciate Dr. Brock taking his time to let us know about his experience using EXO Endo files and hope you can find the time to try them for yourself. And if you feel you don’t have the time to try our files yourself, it just means you can’t afford not to.
X-ray taken by Dr. HB Johnson circa 1939 (courtesy Dr. Tom McDonald, Atlanta GA)
Most of the time x-rays of tortuous canals are used to demonstrate the capabilities of a file. This begs the question: exactly how much information do we get from an x-ray. Dr. HB Johnson, one of the pioneers of endodontics and the man who coined the term endodontics, is the person that performed the RCT of the featured x-ray taken around 1939. If we use this x-ray (courtesy of Dr. Tom McDonald, Atlanta GA) illustrating a successful end result as a benchmark, then we shouldn’t be so impressed with x-rays portrayed today as an indication of how good a file is. The files he used were carbon steel, worse than any file than most of us have ever seen. I’m including two x-rays of cases I completed soon after the introduction of NiTi rotary files. I cannot even remember which files were used, but probably not the ones I would recommend today. The point is: virtually any file can prepare virtually any canal. More difficult to illustrate is the ease, predictability, and productive capability of a file. This is why our research focuses on determining endo file limitations and efficiencies rather than endo file abilities, given the time and skill of the operator.