Division of Oral Surgery, Department of Neurosciences, Reproductive and Odontostomatological Sciences, University "Federico II", Via Pansini 5, Naples, Italy.
Department of Biology and Biotechnology, University "L. Spallanzani", Via Ferrata 9, Pavia, Italy.
Biomed Res Int. 2018 Jun 6;2018:8143962. doi: 10.1155/2018/8143962. eCollection 2018.
Considerations about heat generation, wear, and corrosion due to some macrostructural bur components (e.g., cutting lips, rake angle, flute, and helix angle) have been widely reported. However, little is known about how the microstructural components of the implant drill surface can influence the implant drill lifetime and clinical performance.
To investigate accurately the surface morphology of surgical bone drill, by means of multivariate and multidimensional statistical analysis, in order to assess roughness parameters able to predict the evolution of tribological phenomena linked to heat development, wear, and corrosion occurring in clinical use.
The surfaces of implant drills approximately 2.0mm in diameter made by five manufacturers were examined by means of confocal microscope with white light laser interferometry, obtaining several surface roughness parameters. Statistical multivariate analysis based on discriminant analysis showed, for each cut-off, the parameters which discriminate the manufacturers.
The microstructural parameters used by discriminant analysis evidenced several differences in terms of drill surface roughness between the five manufacturers.
The observed surface roughness difference of drills is able to predict a different durability and clinical performance especially in heat generation and wear onset.
由于某些宏观结构的钻头部件（例如切削刃、前角、螺旋槽和螺旋角）会产生热量、磨损和腐蚀，因此已经广泛研究了这些问题。然而，对于植入物钻头表面的微观结构部件如何影响植入物钻头的寿命和临床性能，人们知之甚少。
通过多变量和多维统计分析准确研究手术骨钻的表面形态，以评估能够预测与临床使用中出现的热产生、磨损和腐蚀相关的摩擦现象演变的粗糙度参数。
使用白光激光干涉共焦显微镜检查了来自五个制造商的直径约为 2.0mm 的植入物钻头的表面，获得了多个表面粗糙度参数。基于判别分析的统计多变量分析显示，对于每个截止值，可区分制造商的参数。
判别分析中使用的微观结构参数在五个制造商的钻头表面粗糙度方面显示出了一些差异。
观察到的钻头表面粗糙度差异能够预测不同的耐用性和临床性能，特别是在热产生和磨损开始时。
