Lumley P J, Blunt L, Walmsley A D, Marquis P M
School of Dentistry, University of Birmingham, St Chad's Queensway, England.
Endod Dent Traumatol. 1996 Oct;12(5):240-5. doi: 10.1111/j.1600-9657.1996.tb00522.x.
The purpose of this investigation was to compare 3D profilometry and SEM analysis of a polished surface of bovine bone instrumented by sonic files. Two situations where investigated, i) no operator assisted movement, ii) operator assisted movement. Heliosonic, Rispisonic and Shaper files were investigated at full power setting and an interfacial load of 100 grams. The specimens were subjected to analysis using a 3D Form Talysurf prior to being sputter coated with gold and viewed under an SEM. The 3D surface analysis was found to be complimentary to SEM evaluation in that each provided additional information to the other. 3D analysis proved to be excellent for showing the topographical nature of the cut surface and gave a better indication of depth than the SEM. Debris was however more apparent on SEM evaluation. Each file showed distinctive characteristics in the shape that was cut. The cutting appeared to be as a result of abrasion with no operator assisted movement and was as a result of the longitudinal file action. However when movement was superimposed on this action continuous chip formation was apparent especially for the Rispisonic and Shaper files.
本研究的目的是比较用超声锉处理的牛骨抛光表面的三维轮廓测量法和扫描电子显微镜（SEM）分析。研究了两种情况，i）无操作人员辅助移动，ii）操作人员辅助移动。在全功率设置和100克界面负荷下，对Heliosonic、Rispisonic和Shaper锉进行了研究。在对标本进行溅射镀金并在扫描电子显微镜下观察之前，先用三维表面轮廓仪对其进行分析。发现三维表面分析与扫描电子显微镜评估相辅相成，因为两者都能为对方提供额外信息。事实证明，三维分析在显示切割表面的地形性质方面非常出色，并且比扫描电子显微镜能更好地显示深度。然而，在扫描电子显微镜评估中碎片更明显。每种锉在切割形状上都显示出独特的特征。在无操作人员辅助移动的情况下，切割似乎是由磨损造成的，是纵向锉作用的结果。然而，当在此动作上叠加移动时，连续切屑形成明显，尤其是对于Rispisonic和Shaper锉。
