Comparative Evaluation of Frictional forces between different Archwire-bracket Combinations

Authors

  • Vinit Singh Orthodontist, Institute of Dental Sciences, Bhubaneswar
  • Swati Acharya Institute of Dental Sciences, Bhubaneswar
  • Satyabrata Patnaik Institute of Dental Sciences, Bhubaneswar
  • Smruti Bhusan Nanda Institute of Dental Sciences, Bhubaneswar

DOI:

https://doi.org/10.3126/ojn.v4i1.11307

Keywords:

Beta-titanium wire, frictional resistance, kinetic friction, self-ligating, static friction

Abstract

Introduction: During sliding mechanics, frictional resistance is an important counterforce to orthodontic tooth movement; whichmust be controlled to allow application of light continuous forces.

Objective: To investigate static and kinetic frictional resistance between three orthodontic brackets: ceramic, self-ligating, andstainless steel, and three 0.019×0.025” archwires: stainless steel, nickel-titanium, titanium-molybdenum.

Materials & Method: The in vitro study compared the effects of stainless steel, nickel-titanium, and beta-titanium archwires onfrictional forces of three orthodontic bracket systems: ceramic, self-ligating, and stainless steel brackets. All brackets had 0.022”slots, and the wires were 0.019×0.025”. Friction was evaluated in a simulated half-arch fixed appliance on a testing machine. Thestatic and kinetic friction data were analyzed with 1-way analysis of variance (ANOVA) and post-hoc Duncan multiple rangetest.

Result: Self-ligating (Damon) brackets generated significantly lower static and kinetic frictional forces than stainless steel (Gemini)and ceramic brackets (Clarity). Among the archwire materials, Beta-titanium showed the maximum amount of frictional forceand stainless steel archwires had the lowest frictional force.

Conclusion: The static and kinetic frictional force for stainless steel bracket was lowest in every combination of wire.

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Published

2014-10-24

How to Cite

Singh, V., Acharya, S., Patnaik, S., & Nanda, S. B. (2014). Comparative Evaluation of Frictional forces between different Archwire-bracket Combinations. Orthodontic Journal of Nepal, 4(1), 22–28. https://doi.org/10.3126/ojn.v4i1.11307

Issue

Vol. 4 No. 1 (2014)

Section

Original Articles

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