Not so long ago, endodontic treatment was done with hand filers and reamers. With today’s technological advancements, performing a root canal with the aid of a rotary file system is simpler and more comfortable for the patient. The use of the rotary file system provides Dr. Guerriero more control letting them perform quite precise treatment. For the patient it indicates a root canal which will take a fraction of the time, is far more comfortable and a lot more accurate.