I do not recommend Dr. John Nardi unless your primary dentist is 100 % positive you require a root canal procedure. I had a situation where I was experiencing a toothache and the primary was not sure what the cause was and referred me to Dr. Nardi for further evaluation. Dr. Nardi determined a root canal procedure was required, the procedure was performed and the pain intensified after the procedure. Revisted Dr. Nardi two weeks after the procedure due to the pain and for the most part Dr. Nardi walked away from the issue and suggested I revisit my primary for a recommendation to another specialist. In the end Dr. Nardi received $ 1,000.00 for a procedure I did not require. An MRI at a later date revealed TMJ was the true pain source.
As mentioned before, if there is any question whatsoever if a root canal procedure is required, avoid Dr. Nardi and find a specialist who will perform a thorough evaluation and take TMJ into consideration.