Evaluation of Load Deflection, Surface Roughness and Frictional Forces of Aesthetic Niti Arch Wires

Objective: The purpose of this in vitro study is that NiTi esthetic arch wires are preferred to match estheticbraces; but the presence coating layer greatly affect friction during sliding mechanics.The aims were evaluate load deflection and influence surface roughness with thecoating material types on frictional force coated nickel titanium wires.Method: sample consisted 90 segments uncoated Nickle archwires for three tests (friction test, test loading test) 45 segment each involvingtwo wire dimensions (0.016 × 0.022 0.019 0.025 inches). static was measuredthrough pulling through a set ceramic brackets by universal testing machine while, thesurface topography assessed using Atomic microscope (AFM) deflectiontest also measured. data analyzed one-way analysis variance (ANOVA) Tukey’s posthoc significance difference tests. Differences considered significant at P<0.05.Results: forces gold lesser than both control(uncoated) niti epoxy coatedwire dimention (0.016×0.022 0.019×0.025) inch. Surface wiresis higher control dimentions. Load thancoated (0.016×0.022) inches dimension.Conclusion: plated had lower (control wires).Surface control(uncoated)arch wire. forceof wires.