Comparative Study of Cleaning Efficacy of Different Concentrations of Sodium Hypochlorite on Nickel-Titanium Endodontic Instruments. Baskaran Kaviena1, Dr. Raj James D.2, Dr. Yang Joshua Ng Chor3,* 1CRI, Saveetha Dental College and Hospitals, Chennai, India 2Senior Lecturer, M.D.S, Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Chennai, India 3BDS, Saveetha Dental College and Hospitals, Chennai, India *Corresponding Author E-mail: ryan.joshng@gmail.com
Online published on 29 April, 2017. Abstract Objective The objective of this study was to develop an effective cleaning procedure for Nickel-Titanium instruments. Materials and method Twelve newly sterilized Nickel-Titanium(Ni-Ti) instruments were contaminated by preparing canals of extracted teeth and subjected to both mechanical and chemical cleaning procedures under various concentration of sodium hypochlorite. Debris on flutes was scored after staining with Van Gieson's solution at X20 magnification using a stereomicroscope. Results This study showed that a sequential cleaning procedure including combined mechanical and chemical removal with 12% Sodium Hypochlorite (NaOCl) solution is an effective procedure of removing debris from Nickel Titanium hand instruments. Conclusion The result of this study has shown that a sequential cleaning procedure including combined mechanical and chemical removal with 12% Sodium Hypochlorite solution is an effective procedure of removing debris from Ni-Ti instruments. Top Keywords Nickel, sodium hypochlorite, titanium, root canal preparation, titanium nickelide. Top |