Kopperud Hilde M, Schmidt Malene, Kleven Inger S
Nordic Institute of Dental Materials (NIOM), Haslum, Norway.
Eur J Oral Sci. 2010 Feb;118(1):100-2. doi: 10.1111/j.1600-0722.2009.00697.x.
Previous studies have shown that residual monomers, initiators, and additives are eluted from methacrylate-based dental composite materials. Recently, a composite material (Filtek Silorane), based on a new resin chemistry, was introduced. The purpose of this study was to investigate substances eluted from Filtek Silorane in water and ethanol. Polymerized specimen discs of the material were immersed in either distilled water or 75 vol% ethanol at 37 degrees C, and the solutions were analyzed using liquid chromatography-mass spectrometry after 1, 4, 24, and 72 h eluting time. No substances were found to leach from Filtek Silorane in water, whereas silorane monomers and an initiator component were eluted from the material into the ethanol solution.
先前的研究表明，甲基丙烯酸酯基牙科复合材料会洗脱残留单体、引发剂和添加剂。最近，一种基于新型树脂化学的复合材料（Filtek Silorane）被引入。本研究的目的是调查Filtek Silorane在水和乙醇中洗脱的物质。将该材料的聚合标本圆盘在37℃下浸泡于蒸馏水或75体积%乙醇中，在洗脱1、4、24和72小时后，使用液相色谱-质谱法对溶液进行分析。未发现有物质从Filtek Silorane中在水中浸出，而硅氧烷单体和一种引发剂成分从该材料中洗脱到乙醇溶液中。
