Department of Restorative Dentistry, Piracicaba Dental School, Campinas State University, Piracicaba, São Paulo, Brazil.
Microsc Res Tech. 2012 Oct;75(10):1348-52. doi: 10.1002/jemt.22073. Epub 2012 May 25.
The purpose of this study was to characterize the inorganic components and morphology of filler particles of conventional and self-adhesive, dual-curing, resin luting cements. The main components were identified by energy dispersive X-ray spectroscopy microanalysis (EDX), and filler particles were morphologically analyzed by scanning electron microscopy (SEM). Four resin cements were used in this study: two conventional resin cements (RelyX ARC/3M ESPE and Clearfil Esthetic Cement/Kuraray Medical) and two self-adhesive resin cements (RelyX Unicem/3M ESPE and Clearfil SA Luting/Kuraray Medical). The materials (n = 5) were manipulated according to manufacturers' instructions, immersed in organic solvents to eliminate the organic phase and observed under SEM/EDX. Although EDX measurements showed high amount of silicon for all cements, differences in elemental composition of materials tested were identified. RelyX ARC showed spherical and irregular particles, whereas other cements presented only irregular filler shape. In general, self-adhesive cements contained higher filler size than conventional resin luting cements. The differences in inorganic components and filler particles were observed between categories of luting material and among them. All resin cements contain silicon, however, other components varied among them.
本研究旨在描述传统型与自酸蚀、双重固化树脂水门汀的无机成分和填料颗粒的形态。通过能谱微分析（EDX）确定主要成分，通过扫描电子显微镜（SEM）对填料颗粒进行形态分析。本研究使用了 4 种树脂水门汀：两种传统型树脂水门汀（RelyX ARC/3M ESPE 和 Clearfil Esthetic Cement/Kuraray Medical）和两种自酸蚀树脂水门汀（RelyX Unicem/3M ESPE 和 Clearfil SA Luting/Kuraray Medical）。根据制造商的说明操作材料（n = 5），将其浸入有机溶剂中以去除有机相，然后在 SEM/EDX 下观察。尽管 EDX 测量显示所有水门汀的硅含量都很高，但测试材料的元素组成存在差异。RelyX ARC 显示出球形和不规则颗粒，而其他水门汀仅呈现不规则的填料形状。一般来说，自酸蚀树脂水门汀的填料尺寸高于传统型树脂水门汀。在水门汀类别之间以及类别内观察到无机成分和填料颗粒的差异。所有树脂水门汀都含有硅，但其他成分有所不同。
