Damage Maps of Veneered Zirconia under Simulated Mastication
نویسندگان
چکیده
منابع مشابه
Fracture of porcelain-veneered gold-alloy and zirconia molar crowns using a modified test set-up
Objective: The main aim of this study was to compare fracture load and fracture mode of yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) and metal-ceramic (MC) molar crowns using a modified test set-up to produce fractures similar to those seen in vivo, i.e. fractures of the veneering material rather than complete fractures. Materials and methods: 13 high-noble-alloy MC and 13 Y-TZP mo...
متن کاملInfluence of pre-treatments on flexural strength of zirconia and debonding crack-initiation strength of veneered zirconia.
PURPOSE The aim of the present study was to assess the influence of pre-treatments of zirconia by sandblasting and/or heat treatment on the flexural strength of zirconia and debonding/crack-initiation strength of porcelain-veneered zirconia ceramic. MATERIALS AND METHODS Zirconia ceramic specimens were divided into four groups according to treatment (grinding as controls, sandblasting, heat t...
متن کاملIn vitro evaluation of fracture strength of zirconia restoration veneered with various ceramic materials
PURPOSE Fracture of the veneering material of zirconia restorations frequently occurs in clinical situations. The purpose of this in vitro study was to compare the fracture strengths of zirconia crowns veneered with various ceramic materials by various techniques. MATERIALS AND METHODS A 1.2 mm, 360° chamfer preparation and occlusal reduction of 2 mm were performed on a first mandibular molar...
متن کاملIn vitro failure and fracture resistance of veneered and full-contour zirconia restorations.
OBJECTIVES This study evaluated the failure and fracture resistance of zirconia-based fixed partial dentures (FPDs) under the influence of different surface treatments and adjustment procedures. METHODS Seven groups (n=8/group) of three-unit zirconia-based FPDs were fabricated in anatomic design (AD) or anatomically reduced design (ARD) and surfaces were prepared according to clinical relevan...
متن کاملTwo-body wear of monolithic, veneered and glazed zirconia and their corresponding enamel antagonists.
OBJECTIVE This study tested whether the two-body wear of monolithic zirconia and their corresponding enamel antagonists was higher compared to monolithic alloy and veneered zirconia. MATERIALS AND METHODS Cylindrical specimens (N = 36, n = 6) were prepared out of (A) veneered zirconia (VZ), (B) glazed zirconia using a glaze ceramic (GZC), (C) glazed zirconia using a glaze spray (GZS), (D) man...
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ژورنال
عنوان ژورنال: Journal of Dental Research
سال: 2008
ISSN: 0022-0345,1544-0591
DOI: 10.1177/154405910808701210