In vitro evaluation of different methods of ligation on friction in sliding mechanics.

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2013-01-01 DOI:10.11607/ortho.905

Govind R Suryawanshi, Shobha Sundareswaran, Koshi Philip, Sreejith Kumar

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引用次数: 2

Abstract

Aim: The aim of this study was to evaluate the effect of different methods of ligation in tie configurations on friction in dry and wet conditions.

Methods: Four methods of ligations were used: regular round tie, figure eight, twist, and diagonal. Materials used were Alastik (3M Unitek), Power O module (ORMCO), O-ring ligatures (JES), stainless steel ligatures (TP Orthodontics), 0.019 × 0.025-inch straight-length stainless steel archwires and stainless steel MBT 0.022-inch slot brackets (3M Unitek).

Results: Figure eight ligation had the highest friction, followed by round, twist, and diagonal ligation, in the descending order. Comparisons were statistically significant with a 100-g load. Dry group samples had higher friction than the wet group. These comparisons were statistically significant with a 50-g load.

Conclusions: The study concluded that figure eight ligation had the highest friction, and diagonal ligation produced the least friction. Among the dry and wet groups, lubrication showed significant reduction in friction.

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滑动力学中不同结扎方法对摩擦的体外评价。

目的:本研究的目的是评估在干燥和潮湿条件下不同结扎方式对摩擦的影响。方法:采用常规圆扎法、八字形结扎法、捻扎法、斜扎法四种结扎方法。使用的材料为Alastik (3M Unitek)， Power O模块(ORMCO)， O型圈结扎(JES)，不锈钢结扎(TP Orthodontics)， 0.019 × 0.025英寸直长不锈钢弓丝，不锈钢MBT 0.022英寸槽托(3M Unitek)。结果:8字形结扎摩擦力最大，依次为圆形结扎、扭转结扎、对角结扎。当负荷为100 g时，比较具有统计学意义。干组试样的摩擦系数高于湿组。这些比较在50g负荷下具有统计学意义。结论:8字形结扎摩擦最大，对角线结扎摩擦最小。在干湿两组中，润滑显著降低了摩擦。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Orthodontics : the art and practice of dentofacial enhancement

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