A Review of the Various Surface Treatments of NiTi Instruments.
Since the introduction of engine-driven nickel-titanium (NiTi) instruments, attempts have been made to minimize or eliminate their inherent defects, increase their surface hardness/flexibility and also improve their resistance to cyclic fatigue and cutting efficiency. The various strategies of enhancing instrument surface include ion implantation, thermal nitridation, cryogenic treatment and electropolishing. The purpose of this paper was to review the metallurgy and crystal characteristics of NiTi alloy and to present a general over review of the published articles on surface treatment of NiTi endodontic instruments.
Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran;
Zahed
Z
Mohammadi
Department of Orthodontics, Hamedan University of Medical Sciences, Hamedan, Iran;
Mohammad Karim
MK
Soltani
General Dental Practitioner, Hamedan, Iran.
Sousan
S
Shalavi
Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran;
Saeed
S
Asgary
Cryogenic Treatment; Electropolishing; Ion Implantation; NiTi; Nickel-Titanium; Thermal Nitridation