Fracture Toughness of Veneer Porcelain for Zirconia All-Ceramic Restorations
نویسندگان
چکیده
منابع مشابه
Fracture Toughness of Veneering Ceramics for Fused to Metal (PFM) and Zirconia Dental Restorative Materials
Veneering ceramics designed to be used with modern zirconia framework restorations have been reported to fracture occasionally in vivo. The fracture toughness of such veneering ceramics was measured and compared to that of conventional feldspathic porcelain veneering ceramics for metal framework restorations. The fracture toughness of the leucite free veneer was measured to be 0.73 MPa m ± 0.02...
متن کاملEffect of Zirconia Thickness on the Tensile Stress of Zirconia Based All-Ceramic Restorations
Introduction: The purpose of the presented study was to evaluate the effect of zirconia thickness on the tensile stress of zirconia based all-ceramic restorations. Methods: Twenty zirconia disks with 10mm diameter were prepared in two groups using CAD/CAM system. The thickness of zirconia was 0.5mm in first group and 0.3mm in second group. After sintering, 0.4mm glass ceramic porcelain was appl...
متن کاملFracture Strength of All-ceramic Restorations After
Fracture strength of monolithic and bilayered LAVA and e. max lower molar crowns after load cycling was measured and compared. The study included three groups (n = 8) from LAVA zirconia and three groups from e. max lithium disilicate to compare influences of different layers, thicknesses and manufacturing techniques. Prefabricated anatomically designed crowns were cemented to dies made from Z 1...
متن کاملThe effect of multiple firings on microtensile bond strength of core-veneer zirconia-based all-ceramic restorations.
PURPOSE Differences in core and veneer coefficients of thermal expansion, firing shrinkage, and speed of increasing and decreasing the temperature may generate stress in veneered all-ceramic restorations. Given the necessity of performing multiple firing cycles to achieve improved contour, color, and esthetics, the purpose of this study was to determine the effect of multiple firing cycles on t...
متن کاملeffect of zirconia thickness on the tensile stress of zirconia based all-ceramic restorations
introduction: the purpose of the presented study was to evaluate the effect of zirconia thickness on the tensile stress of zirconia based all-ceramic restorations. methods: twenty zirconia disks with 10mm diameter were prepared in two groups using cad/cam system. the thickness of zirconia was 0.5mm in first group and 0.3mm in second group. after sintering, 0.4mm glass ceramic porcelain was appl...
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ژورنال
عنوان ژورنال: Annals of Japan Prosthodontic Society
سال: 2014
ISSN: 1883-4426,1883-6860
DOI: 10.2186/ajps.6.291