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Effects of added bioactive glass on the setting and mechanical properties of resin-modified glass ionomer cement

Paper ID Volume ID Publish Year Pages File Format Full-Text
12885 821 2003 7 PDF Available
Title
Effects of added bioactive glass on the setting and mechanical properties of resin-modified glass ionomer cement
Abstract

In this study, the effects of added bioactive glass on the basic setting properties of a commercially available resin-modified glass ionomer cement were investigated with respect to setting time, mechanical strength, and setting mechanism. It was found to be clinically acceptable whether the setting time was extended or shortened depending on the type of bioactive glass added. The compressive strength of the set cement containing the bioactive glass decreased and was much higher when compared with the conventional type glass ionomer cement containing bioactive glass. The Fourier-transform infrared and 13C CP/MAS-NMR spectroscopies revealed that the extent of the acid–base reaction was larger in the cements containing bioactive glass than in the commercial resin-modified glass ionomer cement because of its high basicity in the bioactive glass. The 27Al MAS-NMR showed that crosslinking of the carboxylates in the polymeric acid by Al proceeded less in the cement containing the bioactive glass.

Keywords
Resin-modified glass ionomer cement; Setting time; Compressive strength; Setting mechanism; Bioactive glasses
First Page Preview
Effects of added bioactive glass on the setting and mechanical properties of resin-modified glass ionomer cement
Publisher
Database: Elsevier - ScienceDirect
Journal: Biomaterials - Volume 24, Issue 18, August 2003, Pages 3061–3067
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering