Surface roughness and texture are critical characteristics of dental restorative materials in determining the clinical performance of dental prostheses. This study aimed to quantitatively assess the effects of dental rotary finishing process, necessarily involved in clinical practice, on surface roughness and texture of dental resin nanoceramic (RNC). In vitro dental finishing was conducted on a computer-assisted apparatus with a dental handpiece and diamond burs. Four clinically applied finishing parameters (diamond grit size, depth of cut, feed rate and rotational speed) were selected. The finished surface topographies were measured based on optimized sampling conditions. The 3D amplitude parameters of S q and S z , functional parameters of S bi and S ci , and spatial texture parameters of S al and S tr were obta...

中文翻译：

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牙科手机和旋转钻的牙科树脂纳米陶瓷的体外表面处理特性

表面粗糙度和质地是牙科修复材料在确定义齿临床性能方面的关键特征。这项研究旨在定量评估牙科旋转修整过程（必须参与临床实践）对牙科树脂纳米陶瓷（RNC）的表面粗糙度和质感的影响。在具有牙科手机和金刚石钻头的计算机辅助设备上进行体外牙科涂饰。选择了四个临床应用的精加工参数（金刚石砂粒尺寸，切深，进给速度和转速）。根据优化的采样条件测量完成的表面形貌。S q和S z的3D振幅参数，S bi和S ci的功能参数以及S al和S tr的空间纹理参数是可观察的...