Gaintantzopoulou Marianna, Kakaboura Afrodite, Loukidis Michalis, Vougiouklakis George
Department of Operative Dentistry, University of Athens, Greece.
J Dent. 2009 May;37(5):390-6. doi: 10.1016/j.jdent.2009.01.010. Epub 2009 Feb 23.
The purpose of this study was to investigate the color change in two "self-etch" and one "etch and rinse" adhesive under dark/water and photoaging conditions and to evaluate the influence of these changes on the color stability of resin composite restorative systems.
The adhesives were: One-Up Bond F (OB/Tokuyama), Adper Prompt L-Pop (PL/3M Espe) and Optibond Solo Plus (OS/Kerr). 10 sample disks of each material were prepared (OB(1), LP(1), OS(1)). Additionally, 30 sample discs of TPH Spectrum (Caulk/Dentsply) resin composite were prepared and bonded with the three adhesives tested (OB(2), LP(2), OS(2) groups) to freshly cut dentin discs. 30 days of storage in deionised water (37+/-1 degrees C) in dark conditions was followed by exposure of all samples to UV light photoaging. A colorimetric evaluation (CIELab* system) was performed immediate after sample photopolymization (baseline), at 7 and 30 days of dark/water storage and after the 360h of UV aging. Color changes (DeltaE*) were calculated between baseline and subsequent measurements. The results were analyzed by independent two-way Anova and Sheffe's statistical tests (a=0.05).
All the adhesives evaluated exhibited significant color changes even after early aging time into water. One-Up Bond F presented the highest color alterations under both experimental conditions and Optibond Solo Plus the lowest. The adhesives were proved able to influence the color stability of a resin composite, which is bonded to a dentin substrate. One-Up Bond F induced the strongest effect on color change of the resin composite while no differences were clarified between Adper Prompt L-Pop and Optibond Solo Plus.
Significant color changes were determined under water and photoaging conditions for the "self-etch" and "etch and rinse" adhesives evaluated and the resin composite combined with these agents.
本研究旨在调查两种“自酸蚀”和一种“酸蚀冲洗”粘结剂在黑暗/水环境及光老化条件下的颜色变化，并评估这些变化对树脂复合材料修复系统颜色稳定性的影响。
所使用的粘结剂为：One-Up Bond F（OB/德山）、Adper Prompt L-Pop（PL/3M 艾斯匹）和Optibond Solo Plus（OS/ Kerr）。每种材料制备10个样本盘（OB(1)、LP(1)、OS(1)）。此外，制备30个TPH Spectrum（Caulk/登士柏）树脂复合材料样本盘，并与三种测试粘结剂粘结（OB(2)、LP(2)、OS(2)组）到新切割的牙本质盘上。在去离子水中（37±1℃）黑暗条件下储存30天，然后所有样本进行紫外线光老化处理。在样本光固化后立即（基线）、黑暗/水储存7天和30天以及紫外线老化360小时后进行比色评估（CIELab系统）。计算基线与后续测量之间的颜色变化（ΔE）。结果通过独立双向方差分析和谢费统计检验进行分析（α=0.05）。
即使在早期置于水中老化后，所有评估的粘结剂均表现出显著的颜色变化。在两种实验条件下，One-Up Bond F呈现出最高的颜色变化，而Optibond Solo Plus最低。已证明粘结剂能够影响粘结到牙本质基质上的树脂复合材料的颜色稳定性。One-Up Bond F对树脂复合材料的颜色变化产生最强的影响，而Adper Prompt L-Pop和Optibond Solo Plus之间未明确差异。
在所评估的“自酸蚀”和“酸蚀冲洗”粘结剂以及与这些试剂结合的树脂复合材料中，在水和光老化条件下确定了显著的颜色变化。
