Fuzzi M, Zaccheroni Z, Vallania G
University of Bologna Dental School, Italy.
Int J Prosthodont. 1996 Sep-Oct;9(5):452-8.
The surface roughness of Vita VMK porcelain following oven glazing and eight grinding/polishing treatments was analyzed qualitatively using scanning electron microscopy and quantitatively using a profilometer. Techniques were selected to simulate clinical practice. Scanning electron microscopy evaluation found oven glazing produced a better surface than other polishing methods. On the basis of the profilometric examination, the best roughness average value was obtained using diamond instruments with progressively smaller particle sizes (30, 15, and 8 microns). Scanning electron microscopy analysis showed that all the treatments left the surfaces partially porous and cracked; however, the glazed surface yielded the best result. Although no significant differences were detected for the different treatments, the use of a 30-microns diamond instrument produced a rougher surface. No correlation was found between scanning electron microscopy and profilometer results. This study suggests that several procedures may be used to effectively finish ceramic surfaces.
采用扫描电子显微镜对Vita VMK烤瓷炉内上釉及八种研磨/抛光处理后的表面粗糙度进行定性分析，并用轮廓仪进行定量分析。所选技术旨在模拟临床实践。扫描电子显微镜评估发现，炉内上釉产生的表面比其他抛光方法更好。基于轮廓测量检查，使用粒径逐渐减小（30、15和8微米）的金刚石器械可获得最佳平均粗糙度值。扫描电子显微镜分析表明，所有处理均使表面部分多孔且有裂纹；然而，上釉表面效果最佳。尽管不同处理之间未检测到显著差异，但使用30微米金刚石器械产生的表面更粗糙。扫描电子显微镜与轮廓仪结果之间未发现相关性。本研究表明，可采用多种程序有效完成陶瓷表面处理。
