Influence of substructure design and spacer settings on the in vitro performance of molar zirconia crowns.


OBJECTIVES The aim of this study was to evaluate the in vitro behaviour of all-ceramic zirconia molar crowns in regard to different core designs and marginal fit. METHODS Identically shaped methacrylate molars were prepared according to the ceramic restoration directives resulting in a 1-mm deep circular shoulder preparation. They were embedded in… (More)
DOI: 10.1016/j.jdent.2009.08.003