| Durability of fiber-post and resin core build-up systems. | |
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MedLine Citation:
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PMID: 20379034 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of this study was to evaluate the durability of unidirectional and bidirectional fiber-reinforced post systems under static and cyclic loading. Three prefabricated fiber posts with one of two core composite resins each or a post resin were used. Each specimen was subjected to a three-point bending test after cyclic loading (1000 times) by 0.1, 0.2 or 0.3 mm deflection. Under cyclic loading, flexure strength and elastic modulus tended to show a decrease with increase in deflection in the unidirectional fiber post specimens. No such tendency, however, was observed in the bidirectional fiber post specimen. In conclusion, use of a prefabricated fiber post in a post-and-core complex improved the flexural properties of the core composite resin, regardless of fiber direction. Although deterioration in flexural properties was observed with cyclic loading in the unidirectional fiber post specimens, no significant difference was observed in the bidirectional fiber post specimen. |
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Authors:
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Masayuki Hattori; Shinji Takemoto; Masao Yoshinari; Eiji Kawada; Yutaka Oda |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Dental materials journal Volume: 29 ISSN: 0287-4547 ISO Abbreviation: Dent Mater J Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-04-09 Completed Date: 2010-06-10 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8309299 Medline TA: Dent Mater J Country: Japan |
Other Details:
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Languages: eng Pagination: 224-8 Citation Subset: D |
Affiliation:
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Department of Dental Materials Science, Tokyo Dental College, Masago, Mihama-ku, Chiba, Japan. hattori@tdc.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Bisphenol A-Glycidyl Methacrylate
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chemistry Composite Resins / chemistry* Dental Alloys / chemistry Dental Materials / chemistry* Dental Prosthesis Design* Dental Restoration Failure Elastic Modulus Glass / chemistry* Humans Materials Testing Methacrylates / chemistry Pliability Post and Core Technique* / instrumentation Stainless Steel / chemistry Stress, Mechanical |
| Chemical | |
Reg. No./Substance:
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0/Build-it composite resin; 0/Composite Resins; 0/Dental Alloys; 0/Dental Materials; 0/Methacrylates; 0/Unifil Core; 0/fiberglass; 12597-68-1/Stainless Steel; 1565-94-2/Bisphenol A-Glycidyl Methacrylate |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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