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In-vitroperformance and fracture strength of thin monolithic zirconia crowns

Weigl, Paul ; Sander, Anna ; Wu, Yanyun ; Felber, Roland ; Lauer, Hans-Christoph ; Rosentritt, Martin



Abstract

PURPOSE. All-ceramic restorations required extensive tooth preparation. The purpose of this in vitro study was to investigate a minimally invasive preparation and thickness of monolithic zirconia crowns, which would provide sufficient mechanical endurance and strength. MATERIALS AND METHODS. Crowns with thickness of 0.2 mm (group 0.2, n=32) or of 0.5 mm (group 0.5, n=32) were milled from zirconia ...

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