Opalescence(®) 美白凝胶对大块填充型复合树脂成分浸出的影响。
Effect of Opalescence(®) bleaching gels on the elution of bulk-fill composite components.
机构信息
Department of Operative/Restorative Dentistry, Periodontology and Pedodontics, Ludwig-Maximilians-University of Munich, Goethestr. 70, 80336 Munich, Germany; Walther-Straub-Institute of Pharmacology and Toxicology, Nussbaumstr. 26, 80336 Munich, Germany.
KU Leuven Biomat, Department of Oral Health Sciences, KU Leuven, Kapucijnenvoer 7, B-3000 Leuven, Belgium.
出版信息
Dent Mater. 2016 Feb;32(2):127-35. doi: 10.1016/j.dental.2015.11.033. Epub 2015 Dec 21.
OBJECTIVES
Bleaching treatments can affect release of components from conventional composites. In this continuing study the influence of two different bleaching gels on the elution of bulk-fill composite components was investigated.
METHODS
The composites Tetric EvoCeram(®) Bulk Fill, QuiXFil™ and X-tra fil were treated with the bleaching gels Opalescence PF 15% (PF 15%) for 5 h and PF 35% (PF 35%) for 30 min and then stored in methanol and water for 24 h and 7 d. The eluates were analyzed by gas chromatography/mass spectrometry (GC/MS). Unbleached specimens were used as control group.
RESULTS
A total of 7 different elutable substances have been identified from the investigated composites after bleaching-treatment. Three of them were methacrylates: 2-hydroxyethyl methacrylate (HEMA), triethylene glycol dimethacrylate (TEGDMA) and trimethylolpropane trimethacrylate (TMPTMA). Compared to the unbleached controls an increase in elution after PF 15%-treatment of following compounds was found: HEMA (Tetric EvoCeram(®) Bulk Fill), TEGDMA (QuiXFil™, X-tra fil) and 4-N,N-dimethylaminobenzoic acid butyl ethoxy ester (DMABEE) (Tetric EvoCeram(®) Bulk Fill, QuiXFil™, X-tra fil). Following compounds showed a reduction in elution after PF 35%-treatment compared to controls: TEGDMA (QuiXFil™) and DMABEE (Tetric EvoCeram(®) Bulk Fill). The highest concentration of HEMA was 0.22 mmol/l (Tetric EvoCeram(®) Bulk Fill, methanol, 7 d, PF 15%), the highest concentration of TEGDMA was 0.3 mmol/l (X-tra fil, water, 7 d, PF 15%) and the highest concentration of DMABEE was 0.05 mmol/l (QuiXFil™, water, 7 d, PF 35%).
SIGNIFICANCE
PF 15% and PF 35% can lead to reduced and/or increased elution of some bulk-fill components, compared to unbleached bulk-fill composites.
目的
漂白处理会影响传统复合材料中成分的释放。在这项持续研究中，研究了两种不同的漂白凝胶对块状充填复合材料成分洗脱的影响。
方法
用漂白凝胶 Opalescence PF 15%（PF 15%）处理 Tetric EvoCeram（®）块状充填、QuiXFil（™）和 X-tra fil 复合材料 5 小时，用 PF 35%（PF 35%）处理 30 分钟，然后在甲醇和水中储存 24 小时和 7 天。用气相色谱/质谱（GC/MS）分析洗脱液。未漂白的标本用作对照组。
结果
经漂白处理后，从研究的复合材料中鉴定出 7 种不同的可洗脱物质。其中 3 种为甲基丙烯酸酯：2-羟乙基甲基丙烯酸酯（HEMA）、三乙二醇二甲基丙烯酸酯（TEGDMA）和三羟甲基丙烷三甲基丙烯酸酯（TMPTMA）。与未漂白的对照组相比，PF 15%处理后以下化合物的洗脱量增加：HEMA（Tetric EvoCeram（®）块状充填）、TEGDMA（QuiXFil（™）、X-tra fil）和 4-N，N-二甲基氨基苯甲酸丁氧基乙酯（DMABEE）（Tetric EvoCeram（®）块状充填、QuiXFil（™）、X-tra fil）。与对照组相比，PF 35%处理后以下化合物的洗脱量减少：TEGDMA（QuiXFil（™））和 DMABEE（Tetric EvoCeram（®）块状充填）。HEMA 的最高浓度为 0.22mmol/l（Tetric EvoCeram（®）块状充填，甲醇，7 天，PF 15%），TEGDMA 的最高浓度为 0.3mmol/l（X-tra fil，水，7 天，PF 15%），DMABEE 的最高浓度为 0.05mmol/l（QuiXFil（™），水，7 天，PF 35%）。
意义
与未漂白的块状充填复合材料相比，PF 15%和 PF 35%可导致一些块状充填成分的洗脱减少和/或增加。
Zotero 插件