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首页> 外文期刊>European Journal of Dentistry >Investigation of eluted monomers from resin-based root canal sealer by high-performance liquid chromatography analysis
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Investigation of eluted monomers from resin-based root canal sealer by high-performance liquid chromatography analysis

机译：高效液相色谱法研究树脂基根管封闭剂洗脱的单体

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Objective: The purpose of the current study was to determine the amount of urethane dimethacrylate (UDMA), bisphenol A-glycidyl methacrylate (Bis-GMA), poly (ethylene glycol) dimethacrylate (PEGDMA), bisphenol A ethoxylated dimethacrylate (Bis-EMA), and 2-hydroxyethyl methacrylate (HEMA) eluted from resin-based root canal sealer, epiphany, using high-performance liquid chromatography (HPLC). Materials and Methods: Epiphany was placed into the plastic molds and light-cured with a light emitting diode. After the curing process, each specimen in the first group (n = 12) was immersed in Eppendorf tubes containing a phosphate-buffered saline solution (PBS) and incubated for 45 s. In the second group, each specimen (n = 12) was immersed in Eppendorf tubes containing PBS and incubated for 24 h. Of the specimen extracts, 100 μL were subjected to HPLC. Analysis of data was accomplished with one-way analysis of variance (P Results: All of the samples eluted HEMA, UDMA, Bis-GMA, PEGDMA, and Bis-EMA. A significant difference was determined between the time periods of HEMA, UDMA, PEGDMA, and Bis-EMA (P Conclusion: The results of the current study showed that Epiphany releases HEMA, UDMA, Bis-GMA, PEGDMA, and Bis-EMA in both time periods.
机译：目的：本研究的目的是确定氨基甲酸酯二甲基丙烯酸酯（UDMA），双酚A-甲基丙烯酸缩水甘油酯（Bis-GMA），聚乙二醇二甲基丙烯酸酯（PEGDMA），双酚A乙氧基化二甲基丙烯酸酯（Bis-EMA）的含量，以及使用高效液相色谱（HPLC）从基于树脂的根管封闭剂顿显中洗脱的甲基丙烯酸2-羟乙酯（HEMA）。材料和方法：将主显节放入塑料模具中，并用发光二极管进行光固化。固化过程后，将第一组（n = 12）中的每个样品浸入装有磷酸盐缓冲盐溶液（PBS）的Eppendorf管中，并孵育45 s。在第二组中，将每个标本（n = 12）浸入装有PBS的Eppendorf管中，并孵育24 h。在标本提取物中，对100μL进行HPLC。数据分析是通过单向方差分析完成的（P结果：所有样品均洗脱了HEMA，UDMA，Bis-GMA，PEGDMA和Bis-EMA。在HEMA，UDMA， PEGDMA和Bis-EMA（P结论：当前研究的结果表明主显节在两个时间段内都释放HEMA，UDMA，Bis-GMA，PEGDMA和Bis-EMA。

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