A series of lectures intended to expose the student to the core concepts and current information necessary for a thorough knowledge of non-surgical root canal treatment. This course will describe the treatment procedures and options in non-surgical root canal treatment; Procedures to optimize the working field; benefits of enhanced lighting and magnification in endodontic practice; anatomy of the pulp space; nature of endodontic infections and strategies for their removal/ disruption; Physical, chemical and biological properties of endodontic instruments and materials; Methods of working length determination and their limitations; Conventional and contemporary techniques for endodontic imaging; Current and historic methods for on-surgical root canal treatment; Controversies in endodontic practice; and the need for further intervention in the case of failure or uncertainty.