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    • #2277
      AvatarTasos Koursoumis

      Greetings to all Real World Endo members!!!! This is my first topic and I am very excited about it. Recently I became familiar with the concept of punch hole or ninja access preparation. It is based on minimal invasive dentistry but in my opinion it violates the basic principles of contemporary endodontics. Straight line access is the most fundamental rule for all the subsequent steps of root canal procedure. The only indication for ninja access I believe is missed canal anatomy on a case where the endodontic treatment was performed by the same clinician but a root canal was missed and it was found on a cbct. What is your opinion about it???

    • #2278
      Allen Ali NassehAllen Ali Nasseh

      This is a great question! A Ninja access opening, as the name indicates, is meant for martial arts aspects of endodontic therapy and has very little in common with Real World Endo! 😉

      The idea of saving one additional millimeter of dentin while concurrently increasing the chance of missing hidden canals and introducing complex file paths that torque the file is an example of increasing the complexity of the procedure without scientific proof of a significant clinical improvement in case outcome.

      As the name indicates, RealWorldEndo is proponent of increasing success rates within the realities of clinical practice. Unless the Ninja access opening folks can produce evidence that their reduction in the convenience form is a clinically significant contributor to improving case outcome, their increase in complexity of the procedure is unsubstantiated and unnecessary.

      The way I see it, the burden of proof lies on the shoulder of the ones recommending an increase in complexity rather than those going by conventions. Keep your access openings optimal (not larger than necessary for excellent visualization and straight line access) and shave off time from the procedure while reducing the incidence of iatrogenic problems (file separation, ledging, and missing canals.) I just wrote an article in Inside Dentistry on the Role of Efficiency in Endodontics which I will add to the Article Section of the website now that this subject came up (read it in the Articles Section) You can review if for a big picture view of our ideas on this subject.
      The attached picture series here are ones I used to demonstrated how my attempt to do a Ninja access allowed me to find the three canals, but caused me to miss the MB2, which I had to enlarge more to find. Thank you for your question.

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