Assessment of the influence of metal ions released from the fixed orthodontic appliances on the static friction and surface topography of stainless steel and I archwires: An in-vitro study

Q2 Dentistry
HusseinS Yakop, SarmadS. Salih Al Qassar, MahmoodAhmad Hamood Aljoubory
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引用次数: 0

Abstract

BACKGROUND: Static friction force between the orthodontic brackets and wire impacts the sliding mechanics that affect teeth movements and treatment duration. This sliding media is jam-packed with released metal ions from the fixed appliances. This study aimed to assess the static frictional force and surface topography of stainless steel (SS) and I archwires in dry conditions and in media fully with metal ions that were released from fixed appliances. METHODS: In this research study, a set of 60 as-received straight archwires specimens (5 cm wire) were employed and categorized into two groups based on the material type [30 super elastics new I archwires gauge (0.018 × 0.014 inch) and 30 SS archwires 0.018 × 0.022” as a control]. The archwires' static friction force was measured while sliding a loaded Roth SS brackets (0.018”) on the archwire using a universal tensile testing machine in dry and metal ions released media, while the surface topography was assessed using a noncontact AFM machine. RESULTS: The static friction of I archwire was significantly lower than the SS wire in dry condition. Metal ions media released from fixed appliances significantly reduced the Static friction compared to dry and wet conditions with deionized water for both wires. An Atomic Force Microscope machine surface roughness reports revealed that the highest mean of all three roughness parameters was found in the SS group, followed by I archwires in descending order. Additionally, metal ions media significantly reduce all roughness parameters.
正畸固定矫治器释放金属离子对不锈钢和I型弓丝静摩擦和表面形貌影响的体外研究
背景:正畸托槽与金属丝之间的静摩擦力影响牙齿的滑动力学,从而影响牙齿的运动和治疗时间。这种滑动介质被固定器具释放的金属离子堵塞。本研究旨在评估不锈钢(SS)和I型弧线在干燥条件下和在完全含有固定器具释放的金属离子的介质中的静摩擦力和表面形貌。方法:本研究采用60根收到的直弓丝(5 cm丝),根据材料类型分为两组[30根超弹性新I型弓丝规(0.018 × 0.014英寸)和30根SS型弓丝(0.018 × 0.022英寸)为对照]。使用万能拉力试验机在干燥介质和金属离子释放介质中滑动加载的Roth SS托架(0.018英寸)时,测量了拱形钢丝的静摩擦力,同时使用非接触式AFM机器评估了表面形貌。结果:在干燥条件下,I型弓丝的静摩擦明显低于SS型弓丝。与使用去离子水的干燥和潮湿条件相比,固定器具释放的金属离子介质显著降低了两根电线的静摩擦。原子力显微镜机器表面粗糙度报告显示,所有三个粗糙度参数的最高平均值是在SS组中发现的,其次是按降序排列的I弧线。此外,金属离子介质显著降低了所有粗糙度参数。
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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来源期刊
Journal of Orthodontic Science
Journal of Orthodontic Science Dentistry-Orthodontics
CiteScore
0.90
自引率
0.00%
发文量
46
审稿时长
19 weeks
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