- CODEN : IAJPBB
- issn 2349-7750
TITLE:
COMPARATIVE ASSESSMENT OF FRICTIONAL FORCES BETWEEN DIFFERENT COMBINATIONS OF ARCHWIRE BRACKETS
AUTHORS:
Dr. Sobia Rehman, Dr. Tayybah Tahira, Dr. Anum Rashid, Dr. Mohsin Majeed
ABSTRACT:
Introduction: During sliding mechanics, frictional resistance is an important counterforce for orthodontic tooth movement; which must be controlled to allow the application of light continuous forces. Objective: To test the static and kinetic frictional resistance between three orthodontic brackets: ceramic, self-ligating and stainless steel, and three arches 0.019 × 0.025 ": stainless steel, nickel-titanium, titanium-molybdenum. Place and Duration: This study was conducted at the Orthodontics department of Nishtar dental Hospital, Multan for one-year duration from June 2019 to June 2020. Materials and Methods: An in vitro study compared the effect of stainless steel, nickel titanium, and beta titanium arcs on the frictional 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 assessed in a simulated semi-arc fixed apparatus on a testing machine. The static and kinetic friction data were analyzed using one-way analysis of variance (ANOVA) and Duncan's multi-range post-hoc test. Result: Self-ligating (Damon) brackets generated significantly lower static and kinetic frictional forces than stainless steel (Gemini) and ceramic (Clarity) brackets. Among the arc materials, beta-titanium showed the maximum friction force, and stainless-steel archives had the lowest friction force. Conclusion: The static and kinetic frictional force of the stainless-steel bracket was lowest in each wire combination. Keywords: beta-titanium wire, frictional resistance, kinetic friction, self-ligating, static friction
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NLM ID:101711216 [Serial]
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