Electropolishing Enhances the Resistance of Nickel-Titanium Rotary Files to Corrosion-Fatigue Failure in Hypochlorite

The LCF life of a NiTi instrument rotating with a curvature in a corrosive environment is enhanced by electropolishing. The design, both cross-sectional and longitudinal, appears to have an effect on the fatigue behavior of NiTi rotary instruments.