The effect of comonomer composition, silane heating, and filler type on aqueous TEGDMA leachability in model resin composites.

The effect of comonomer composition, silane heating, and filler type on aqueous TEGDMA leachability in model resin composites.
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共聚单体组成、硅烷加热和填料类型对模型树脂复合材料中水性 TEGDMA 浸出性的影响。

DOI:
10.1111/j.1600-0722.1997.tb00253.x
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发表时间:
1997
影响因子:
1.9
通讯作者:
Söderholm,KJ
Söderholm,KJ
中科院分区:
医学4区
文献类型:
--
作者:
Müller,H;Olsson,S;Söderholm,KJ

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使用bisGMA/TEGDMA或UEDMA/ TEGDMA基质、石英或钡玻璃填料和2种不同填料硅烷化方法的实验复合材料就单体在蒸馏水中的可溶解性进行了评价。使用气相色谱法检测和定量浸出量。结果表明,当两者都含有50重量% TEGDMA时,从基于bisGMA/TEGDMA的复合材料中浸出的TEGDMA是从基于UEDMA/ TEGDMA的复合材料中浸出的TEGDMA的两倍。该假设表明,UEDMA/TEGDMA基复合材料的较高固化程度将反映在较低的单体浸出值中,并且该假设得到了研究结果的支持。这种相关性是否存在于具有不同固化程度的基于UEDMA/TEGDMA的基质的组内尚未确定,需要在未来的研究中进行调查。变量,如填料组合物和硅烷处理不影响TEGDMA在水中的浸出值。这一发现表明,未来的研究应针对基质的差异,并考虑填料组合物和硅烷处理方法的影响的需要不应该得到同样的优先级。
Experimental composites using either bisGMA/TEGDMA or UEDMA/ TEGDMA matrices, quartz or barium glass fillers, and 2 different filler silanization methods were evaluated regarding monomer leachability in distilled water. The leached amount was detected and quantified using gas chromatography. The results showed that twice as much TEGDMA is leached from a bisGMA/TEGDMA based composite than from an UEDMA/ TEGDMA based composite, when both contain 50 wt% TEGDMA. The hypothesis suggested that the higher degree of cure of UEDMA/TEGDMA based composites would be reflected in a lower monomer leaching value, and this hypothesis was supported by the findings. Whether such a correlation exists within groups of UEDMA/TEGDMA based matrices having different degrees of cure was not determined and needs to be investigated in future studies. Variables such as filler composition and silane treatment did not affect the leaching values of TEGDMA in water. That finding suggests that future studies should target differences in matrices, and that the need for considering effects of filler composition and silane treatment methods should not receive the same priority.
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