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首页> 外文期刊>Applied Surface Science >Improvement of orthodontic friction by coating archwire with carbon nitride film
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Improvement of orthodontic friction by coating archwire with carbon nitride film

机译：用氮化碳膜覆盖弓丝以改善正畸摩擦

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In order to reduce frictional resistance between archwire and bracket during orthodontic tooth movement, carbon nitride (CNx) thin films were deposited on the surface of archwires with ion beam assisted deposition (IBAD). The energy-dispersive X-ray spectrometer (EDS) analysis showed that the CNx film was successfully deposited on the surface of the orthodontic wires. X-ray photoelectron spectroscopy (XPS) analysis suggested that the deposited CNx film was sp2 carbon dominated structures, and diversiform bonds (N—C, N=C, et al.) coexisted in the film. The friction tests indicated that the CNx film significantly reduced the wire-bracket friction both in ambient air and in artificial saliva. The sp2C rich structure of the CNx film as well as its protection function for the archwire was responsible for the low friction of the wire-bracket sliding system.
机译：为了减少正畸牙齿移动过程中弓丝与托槽之间的摩擦阻力，采用离子束辅助沉积（IBAD）在弓丝的表面沉积了氮化碳（CNx）薄膜。能量色散X射线光谱仪（EDS）分析表明，CNx膜已成功沉积在正畸导线的表面上。 X射线光电子能谱（XPS）分析表明，沉积的CNx膜为sp2碳为主的结构，并且该膜中共存有多种键（NC，N = C等）。摩擦测试表明，CNx膜可显着降低环境空气和人工唾液中的线架摩擦。 CNx膜的sp2C丰富结构及其对弓丝的保护功能是造成金属丝支架滑动系统低摩擦的原因。

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