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Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

ISSN 0033-6572 (print) • ISSN 1936-7163 (online)

August 1995
Volume 26 , Issue 8

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Microleakage and thermal properties on hybrid ionomer restoratives


Pages: 577-581
PMID: 8602436

The objective of this study was to compare the microleakage and thermal properties of two recently introduced hybrid materials to those of a conventional glass-ionomer cement. Class V preparations were prepared at the cementoenamel junctions in freshly extracted bovine incisor and evaluated for microleakage with a 45 Ca radioisotope method. Thermal properties were evaluated with thermal mechanical analysis and differential scanning calorimetry. The degree of microleakage and the coefficient of thermal expansion of the conventional glass-ionomer cement were found to be significantly less than those of either hybrid formulation.

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