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Fatigue behaviours of the zirconia dental restorations prepared by two manufacturing methods
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Number of Authors: 7
2017 (English)In: Advances in Applied Ceramics: Structural, Functional and Bioceramics, ISSN 1743-6753, E-ISSN 1743-6761, Vol. 116, no 7, 368-375 p.Article in journal (Refereed) Published
Abstract [en]

The fatigue behaviours were evaluated on a novel zirconia dental restoration known as self-glazed zirconia (SG), prepared by a precision additive 3D gel deposition approach, compared with a conventional zirconia (CZ) restoration, shaped by CNC milling of zirconia blanks made by cold isostatic pressing. Eight fixed partial dentures made by each method were subjected to fracture test, without or with the application of 5-million fatigue cycles, respectively. The processing defects, grain size, and t-m phase transformation were examined by SEM and XRD. The results revealed that the fracture force of the SG restorations was higher than that of the CZ restorations in both cases, which ascribed to the fact that more voids and larger grains in the conventional versus in the SG restorations. The t-m phase transformation was observed only on the fracture surfaces of both materials subjected to fatigue test. Both zirconia restorations meet the clinical requirement.

Place, publisher, year, edition, pages
2017. Vol. 116, no 7, 368-375 p.
Keyword [en]
Self-glazed zirconia, zirconia dental restorations, fatigue, fracture, zirconia
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:su:diva-146020DOI: 10.1080/17436753.2017.1336365ISI: 000406578500003OAI: oai:DiVA.org:su-146020DiVA: diva2:1135547
Available from: 2017-08-23 Created: 2017-08-23 Last updated: 2017-08-23Bibliographically approved

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Zhao, JingShen, Zhijian
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Department of Materials and Environmental Chemistry (MMK)
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