Evolution of Nickel-Titanium in Endodontics

Technological advancements achieved in recent years have enabled major progress in endodontic therapy. The introduction of nickel–titanium alloys and the automation of endodontic instrumentation was a huge leap forward breaking the nearly 200-year paradigm of purely manual instrumentation. Nevertheless the practice of root canal instrumentation has remained in a constant state of flux whether due to development of new instruments with different designs or to further advances in Ni-Ti alloy treatments continuously seeking to obtain more resilient and flexible systems. The objective of this book is to present and discuss the characteristics of the Ni-Ti alloys used in the major instrumentation systems available in the market as well as the influence of the metallurgical and mechanical properties of Ni-Ti instruments and the movements that drive them to enable more accurate and predictable planning of root canal preparation.