中国组织工程研究Issue(47)：7621-7626,6.DOI:10.3969/j.issn.2095-4344.2014.47.014
TiO2-xNy薄膜托槽的表面摩擦性能
Friction properties of orthodontic brackets coated with TiO2-xNy
摘要
Abstract
BACKGROUND:In previous experiments, TiO2-xNy OBJECTIVE:To study the friction properties of orthodontic brackets coated with TiO-coated bracket has been confirmed to have excelent antibacterial properties and biological safety performance. 2-xNy METHODS: TiO film. 2-xNy film was prepared by radiofrequency magnetron sputtering on MBT bracket (0.022″). The TiO 2-x N y RESULTS AND CONCLUSION: TiO-coated brackets were analyzed by X-ray diffraction and scanning electron microscopy observations. The coefficient of static friction and coefficient of kinetic friction between the wires (0.012″, 0.014″, 0.016″) and orthodontic brackets were calculated. 2-xNy film on the bracket was of anatase structure, which was compact and had good crystalinity. Under dry condition, the coefficient of static friction and kinetic friction of the brackets coated with TiO2-xNy were less than those of ordinary brackets; under wet condition, the coefficients of static friction and kinetic friction of the brackets coated with TiO2-xNy were less than those of ordinary brackets, but the difference was not statisticaly significant. Nano-TiO2-xNy film can reduce the friction between bracket and archwire, which wil offer a novel opportunity to significantly reduce the friction during tooth movement.关键词
生物材料/口腔生物材料/纳米TiO2-xNy/金属MBT直丝弓托槽/TiO2-xNy薄膜托槽/摩擦系数/甘肃省自Key words
nanoparticles/friction/orthodontic extrusion分类
医药卫生引用本文复制引用
李娜,周海静,韩冰,张颖杰,曹宝成..TiO2-xNy薄膜托槽的表面摩擦性能[J].中国组织工程研究,2014,(47):7621-7626,6.基金项目
中央高校基本科研业务费专项资金(31920130068)；中央高校基本科研业务费专项资金(31920130032)；甘肃省自然科学基金(1208RJZA236)；西北民族大学科研创新团队项目(xbmzcxtd-2011-1) （31920130068）
