"There are many factors that influence the degree of difficulty and risk of root canal treatment. Recognition of these factors prior to the initiation
Microendodontics with Zeiss OPMI PRO Ergo Operative Microscope: Striving to Find a Pathway to the Apices and to Clean a “C” Shape RC system.
The name comes from the letter "C" shape appearance of a very large isthmus in the pulp chamber floor when viewed from above. This isthmus or groove