Department of Restorative Dentistry and Endodontics, Facultat de Ciències de la Salut, Odontologia, Universitat Internacional de Catalunya, C/Josep Trueta s/n, 08195, Sant Cugat del Vallès, Barcelona, Spain.
Clin Oral Investig. 2013 Jul;17(6):1481-7. doi: 10.1007/s00784-012-0837-7. Epub 2012 Sep 20.
The purpose of this study was to determine, by using a spectrophotometer device, the color stability of silorane in comparison with four methacrylate-based composites after being immersed in different staining solutions such as coffee, black tea, red wine, orange juice, and coke, and distilled water as control group.
Four restorative methacrylate-based composites (Filtek Z250, TetricEvoCeram, Venus Diamond, and Grandio) and one silorane (FiltekSilorane) of shade A2 were selected to measure their color stability (180 disk samples) after 4 weeks of immersion in six staining solutions: black tea, coffee, red wine, orange juice, coke, and distilled water. The specimen's color was measured each week by means of a spectrophotometer (CIE Lab* system). Statistical analysis was carried out performing an ANOVA and LSD Test in order to statistically analyze differences in Lab*and ∆E values.
All materials showed significant discoloration (p < 0.05) when compared to the control group (immersed in distilled water). The Highest ∆E observed was with red wine, whereas coke led to the lowest one. Silorane showed the highest color stability compared with methacrylate-based composites.
Methacrylate-based materials immersed in staining solutions showed lower color stability when compared with silorane. Great differences in ∆E were found among the methacrylate-based materials tested.
Although color stability of methacrylate-based composites immersed in staining solutions has been widely investigated, this has not been done for long immersion periods with silorane-based composites.
本研究旨在使用分光光度计设备确定硅烷醇与四种甲基丙烯酸酯基复合材料在浸泡于不同染色溶液（如咖啡、红茶、红酒、橙汁和可乐以及蒸馏水）后的颜色稳定性，以蒸馏水为对照组。
选择四种修复用甲基丙烯酸酯基复合材料（Filtek Z250、TetricEvoCeram、Venus Diamond 和 Grandio）和一种 A2 色的硅烷醇（Filtek Silorane），在浸泡于六种染色溶液（红茶、咖啡、红酒、橙汁、可乐和蒸馏水）4 周后，测量其颜色稳定性（180 个盘状样本）。每周使用分光光度计（CIE Lab系统）测量样本的颜色。进行方差分析和 LSD 检验以统计分析 Lab和 ∆E 值的差异。
与对照组（浸泡于蒸馏水中）相比，所有材料均显示出显著的变色（p<0.05）。观察到的最高 ∆E 值是红酒，而可乐导致的最低 ∆E 值。硅烷醇与甲基丙烯酸酯基复合材料相比表现出更高的颜色稳定性。
与硅烷醇相比，浸泡于染色溶液中的甲基丙烯酸酯基材料显示出较低的颜色稳定性。在所测试的甲基丙烯酸酯基材料中，发现 ∆E 值存在很大差异。
虽然已经广泛研究了浸泡于染色溶液中的甲基丙烯酸酯基复合材料的颜色稳定性，但尚未对硅烷醇基复合材料进行长时间浸泡的研究。
