Standardised MOD cavities were cut in 15 human premolar teeth using a custom paralleling device. The teeth were subsequently sectioned and measurements were taken at 21 key points with the aid of an image-analysis light microscopy system. Statistical significance tests were applied to examine for difference in interface dimensions at specific points within each of the cement-groups and amongst groups. There is no statistically significant difference in the width of the interface at any given point between the three cement groups. Caution must be exercised with light-activated composite cements to ensure adequate transmission of light through the ceramic and the underlying composite cement.
Ceramic materials provide an alternative when choosing a tooth-colored restoration.
When compared to composite materials, these materials closely approximate the physical properties of enamel in compressive and tensile strength and wear resistance. The Cerec Network - All rights reserved.