Y-TZP zirconia regeneration firing: Microstructural and crystallographic changes after grinding
نویسندگان
چکیده
منابع مشابه
Y-TZP zirconia regeneration firing: Microstructural and crystallographic changes after grinding.
This study evaluated microstructural and crystallographic phase changes after grinding (G) and regeneration firing/anneling (R) of Y-TZP ceramics. Thirty five bars (LavaTM and Ice Zirkon) were divided: Y-TZP pre-sintered, control (C), regeneration firing (R), dry grinding (DG), dry grinding+regeneration firing (DGR), wet grinding (WG) and wet grinding+regeneration firing (WGR). Grinding was con...
متن کاملCytotoxicity and biocompatibility of Zirconia (Y-TZP) posts with various dental cements
OBJECTIVES Endodontically treated teeth with insufficient tooth structure are often restored with esthetic restorations. This study evaluated the cytotoxicity and biological effects of yttria partially stabilized zirconia (Y-TZP) blocks in combination with several dental cements. MATERIALS AND METHODS Pairs of zirconia cylinders with medium alone or cemented with three types of dental cement ...
متن کاملEvaluation of air-particle abrasion of Y-TZP with different particles using microstructural analysis.
BACKGROUND This study evaluated the effect of air-particle abrasion with different particle sizes on the surface roughness and phase transformation of yttria-stabilized tetragonal zirconia ceramics (Y-TZP). METHODS Eighty-four Y-TZP discs of 15 mm diameter and 1.0 mm thickness were fabricated. The samples were divided into four groups (n = 21): (1) air-particle abrasion with 30 μm CoJet sand ...
متن کاملClinical gap changes after porcelain firing cycles of zirconia fixed dentures
PURPOSE The aim of this study was to measure the changes on the marginal and internal adaptation of zirconia based anterior fixed partial dentures after the porcelain firing process. MATERIALS AND METHODS A total of 34 anterior fixed partial dentures using LAVA CAD/CAM system (3M ESPE, Germany) were applied. Two silicone replicas were obtained: one is obtained before porcelain firing process ...
متن کاملPii: S0109-5641(99)00070-6
Objectives: This study was conducted to evaluate the effect of grinding and sandblasting on the microstructure, biaxial flexural strength and reliability of two yttria stabilized tetragonal zirconia (Y-TZP) ceramics. Methods: Two Y-TZP powders were used to produce fine grained and coarse grained microstructures. Sixty discs from each material were randomly divided into six groups of ten. For ea...
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ژورنال
عنوان ژورنال: Dental Materials Journal
سال: 2017
ISSN: 0287-4547,1881-1361
DOI: 10.4012/dmj.2016-124