Analysis of mineral trioxide aggregate surface when set in the presence of fetal bovine serum

被引：33

作者：

Tingey, Mark C. ^{[1
]}

Bush, Peter ^{[2
]}

Levine, Ming Shih ^{[1
]}

机构：

[1] SUNY Buffalo, Dept Periodont & Endodont, Sch Dent Med, Buffalo, NY 14214 USA

[2] SUNY Buffalo, Sch Dent Med, S Campus Instrument Ctr, Buffalo, NY 14214 USA

来源：

JOURNAL OF ENDODONTICS | 2008年 / 34卷 / 01期

关键词：

energy dispersive x-ray spectroscopy; fetal bovine serum; mineral trioxide aggregate; scanning electron microscopy; surface;

D O I：

10.1016/j.joen.2007.09.013

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Understanding the chemical and physical characteristics of set mineral trioxide aggregate (MTA) surface can provide insight into its bioactivity. The purpose of this study was to describe the surface chemistry and morphology of gray and white MTA set in the presence of fetal bovine serum (FBS). Eight MTA blocks were prepared: four set in the presence of water and four in FBS. The surface morphologic characteristics were studied via scanning electron microscopy. The surface chemical composition of the set cement was investigated by energy dispersive x-ray spectroscopy and x-ray fluorescence. No difference was found between gray and white MTA when set in the same solution. However, MTA/FBS and MTA/water present differing surface morphology and chemical distributions. When set in FBS, MTA's surface had a homogenous distribution of chemicals and a relatively smooth globular appearance. MTA/water's surface was biphasic, containing large hexagonal crystalline plates composed of calcium embedded in a pool of globular crystals.

引用

页码：45 / 49

页数：5

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