Department of Prosthodontics, Faculty of Dentistry, Baskent University, Ankara, Turkey.
Int J Prosthodont. 2009 Sep-Oct;22(5):472-5.
The aim of this study was to evaluate the surface properties and color of porcelain modified by extraoral polishing sequences. Six different surface treatment regimens (diamond burs, self-glaze, overglaze, reglaze, Pearl Surface polishing system, and Diamond Twist SCL) were applied to 60 porcelain disks (n = 10 per group). Profilometry and atomic force microscopy (AFM) were used for the determination of surface roughness (Ra); color changes (deltaE*) were investigated by spectrophotometry. Statistical comparisons were made using analysis of variance, the Kruskal-Wallis test, and the Pearson correlation coefficient test. Surface treatments significantly affected Ra values (P < .001) but had no effect on color (P > .05). AFM findings were consistent with Ra values. Color did not appear to be correlated with surface roughness (P > .05). The findings concluded that the Pearl Surface system helps to decrease chairside time and may be used as an alternative to overglazing.
本研究旨在评估经口腔外抛光序列改良后的瓷的表面性能和颜色。将 6 种不同的表面处理方案（金刚砂车针、自上釉、上釉、重上釉、Pearl Surface 抛光系统和 Diamond Twist SCL）应用于 60 个瓷盘（每组 10 个）。采用轮廓仪和原子力显微镜（AFM）测量表面粗糙度（Ra）；分光光度计用于研究颜色变化（ΔE*）。采用方差分析、Kruskal-Wallis 检验和 Pearson 相关系数检验进行统计学比较。表面处理显著影响 Ra 值（P <.001），但对颜色无影响（P >.05）。AFM 结果与 Ra 值一致。颜色似乎与表面粗糙度无关（P >.05）。研究结果表明，Pearl Surface 系统有助于减少椅旁时间，可作为上釉的替代方法。
