Minimising the friction force of the archwire-bracket sliding contact is crucial for achieving a high-quality orthodontic treatment. Micro-dimples and micro-grooves textures were successfully produced on the two slot surfaces of the stainless steel orthodontic brackets with the laser surface texturing technology. The effect of surface texture on reducing the friction and wear behaviour of the stainless steel archwire-bracket sliding contact combinations in artificial saliva environment was investigated. Friction coefficients of less than 0.15 and mild wear were obtained by using the three rows micro-grooves textured bracket with a width of 60 μm and a spacing of 150 μm. The friction and wear performance was further enhanced with the addition of orthodontic wax materials. It was strongly argued that the synergetic effects of the fabricated micro-grooves texture and the added orthodontic wax materials leading to the outstanding friction and wear behaviour of the archwire-bracket sliding contacts.

中文翻译：

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激光表面纹理增强正畸托槽的摩擦和磨损行为

最大限度地减少弓丝-托槽滑动接触的摩擦力对于实现高质量的正畸治疗至关重要。利用激光表面毛化技术，在不锈钢正畸托槽的两个槽面上成功制作出微凹坑和微凹槽纹理。研究了表面纹理对减少人工唾液环境中不锈钢弓丝-托槽滑动接触组合的摩擦和磨损行为的影响。采用宽度60μm、间距150μm的三排微槽纹理支架，摩擦系数小于0.15，磨损轻微。正畸蜡材料的添加进一步增强了摩擦磨损性能。人们强烈认为，制造的微凹槽纹理和添加的正畸蜡材料的协同效应导致弓丝-托槽滑动接触具有出色的摩擦和磨损行为。