Microleakage and thermal properties of hybrid ionomer restoratives.

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