DOI: 10.36347/sjds.2017.v04i06.006

Pages: 276-287

In the field of endodontics revolution transpired over the years. The modern endodontic specialty practice has little resemblance to the traditional means. There is a lot of transformation, in the materials used and the type of instrumentation. Initially, stainless steel was the material of choice and manual instrumentation was the only means of cleaning the root canals. However, there is a tremendous change in the modern endodontics, due to introduction of NiTi (Nickel Titanium) files and rotary instrumentation. NiTi was developed 40 years ago in the Naval Ordinance Laboratory (NOL) in Silver Springs, Maryland. Therefore, the acronym Nitinol is used worldwide for this unusual type of alloy with better flexibility and fracture resistance. Rotary systems that evolved over years in to different generations differ in the series of instruments included. Hence, it is essential for the beginners to understand the differences among all the available systems and their usage which are highlighted in this review article.