Recent rotary file systems

Success in modern day endodontics is based on various principles comprising of diagnosis and treatment planning, knowledge of anatomy and morphology, thorough debridement of the root canal system, mechanical preparation of root canal along with chemical disinfection and three-dimensional obturation, followed by the coronal restoration. In order to facilitate the obturation of root canal system, adequate shaping of root canal is necessary. Endodontic instruments play a significant role in the success of endodontic treatment starting from the preparation of the access cavity to the final obturation of the root canal space. A continuously tapering funnel shape with the smallest diameter at the end point and the largest at the orifice has been deemed to be the most appropriate canal shape for filling with gutta-percha and sealer.