Cosleeping (bedsharing) among infants and toddlers |
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Authors: | MT Stein CA Colarusso JT McKenna NG Powers |
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Affiliation: | Division of Restorative Dentistry, School of Clinical Dentistry, Queen's University of Belfast, UK. |
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Abstract: | This study was designed to investigate the effect of retaining coronal tooth substance on the performance of post-retained core materials, and to compare the fracture resistance of the system with an intact tooth prepared to similar dimensions. Ten teeth restored with post-retained silver amalgam, and 10 teeth restored with silver-glass cermet, all with a retained single wall of coronal tooth substance, were compared with 10 unrestored teeth prepared to similar dimensions when subjected to a shearing load. The results showed no statistically significant difference between the unrestored teeth and those restored with a silver-glass cermet. Whilst the teeth restored with silver amalgam had a significantly higher fracture resistance (P > 0.01) there was greater tendency to root fracture. |
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