Endodontics: Part 1. The modern concept of root canal treatment.

Root canal treatment has changed considerably since the hollow tube theory was first postulated in 1930. Research continues into the elaborate anatomy of root canal systems, and also into the microbial causes of endodontically related diseases. Only by understanding these aspects in detail can the practitioner quickly and effectively shape the main root canals to facilitate thorough cleaning of the entire system, and easy and effective filling.