Department of Pediatric Dentistry, Course of Medical and Dental Science, Nagasaki University Graduate School of Biomedical Sciences, 1-7-1, Sakamoto, Nagasaki 852-8588, Japan.
J Dent. 2011 Oct;39(10):700-6. doi: 10.1016/j.jdent.2011.08.002. Epub 2011 Aug 11.
Application of acidulated phosphate fluoride (APF) gel has been reported to cause deterioration of resin composites. This study investigated the effects of APF gel application on surface roughness, gloss and colour of resin composites.
A2-shade resin disks of 2mm thickness polished with 180-grit and 3000-grit SiC papers were made with Estelite Σ Quick (EQ), Clearfil Majesty (CM) and Beautifil II (B2). Six disks were prepared for each group. APF gel was applied in a 3mm thickness on the top surface of resin disks and left for 30min followed by rinsing and ultrasonic washing. This procedure was repeated 4 times. The Lab* values, colour difference (ΔE*ab), opacity, surface gloss and roughness of specimens before and after APF application were compared. Data were analysed ANOVA and Fisher's PLSD test with α=0.05.
For the 3000-grit polishing groups, the order of influence of APF gel application on colour of resin composites was CM>B2>EQ. Both in the 180- and 3000-grit polishing groups, colour difference before and after APF gel application was hard to detect (CM and B2) or impossible to detect (EQ) by naked eye. On the other hand, for all the resin composites, the gloss was significantly decreased by APF gel application. APF gel appeared to cause deterioration and dissolution of resin composites used in this study.
In this limited study, supra-nano spherical filled Estelite Σ Quick showed the least change on colour, gloss and surface roughness by APF gel application.
已有报道称，使用酸性磷酸氟化物（APF）凝胶会导致树脂复合材料恶化。本研究旨在探讨 APF 凝胶应用对树脂复合材料表面粗糙度、光泽度和颜色的影响。
采用 Estelite Σ Quick（EQ）、Clearfil Majesty（CM）和 Beautifil II（B2）制作厚度为 2mm 的 A2 色树脂圆盘，并用 180 目和 3000 目 SiC 砂纸进行抛光。每组制备 6 个圆盘。将 APF 凝胶涂在树脂圆盘的顶面上，厚度为 3mm，放置 30min 后冲洗并进行超声清洗。此过程重复 4 次。比较 APF 应用前后试样的 Lab值、色差（ΔEab）、不透明度、表面光泽度和粗糙度。采用方差分析和 Fisher's PLSD 检验进行数据比较，α=0.05。
对于 3000 目抛光组，APF 凝胶应用对树脂复合材料颜色的影响顺序为 CM>B2>EQ。在 180 目和 3000 目抛光组中，APF 凝胶应用前后的颜色差异用肉眼难以察觉（CM 和 B2）或无法察觉（EQ）。另一方面，对于所有树脂复合材料，APF 凝胶应用后光泽度显著降低。APF 凝胶似乎会导致本研究中使用的树脂复合材料劣化和溶解。
在这项有限的研究中，超纳米球形填充的 Estelite Σ Quick 在颜色、光泽度和表面粗糙度方面受 APF 凝胶应用的影响最小。
