Influence of water immersion on the mechanical properties of fiber posts

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• 作者：Wataru Komada ; DDS ; PhD^a ; ^{w.komada.fpro@tmd.ac.jp} ; Tasuku Inagaki ; DDS ; PhD^a ; ^{t.inagaki.fpro@tmd.ac.jp} ; Yoji Ueda ; DDS ; PhD^a ; ^{y.ueda.fpro@tmd.ac.jp} ; Satoshi Omori ; DDS ; PhD^a ; ^{s.omori.fpro@tmd.ac.jp} ; Keiichi Hosaka ; DDS ; PhD^b ; ^{hosaka.ope@tmd.ac.jp} ; Junji Tagami ; DDS ; PhD^b ; ^{tagami.ope@tmd.ac.jp} ; Hiroyuki Miura ; DDS ; PhD^a ; ^{h.miura.fpro@tmd.ac.jp}
• 关键词：Glass fiber posts ; Fracture strength ; Composite resin core ; Water immersion
• 刊名：Journal of Prosthodontic Research
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：61
• 期：1
• 页码：73-80
• 全文大小：1672 K
• 卷排序：61

文摘

The purpose of this study was to evaluate the influence of water immersion on the mechanical properties of three kinds of glass fiber posts and the fracture resistance of structures using resin composites with glass fiber posts.MethodsEach post was divided into three groups; a control group and two water immersion groups (30 and 90 days). Flexural strength was determined by three-point bending test. Each structure was divided into two groups; a control group and a water immersion group for 30 days. The fracture strength of structures was determined by a static loading test.ResultsIn the flexural strength, two kinds of post in water immersion groups showed lower values than control groups. In the fracture strength, two kinds of structures in water immersion group showed lower values than control groups.ConclusionThe prefabricated glass fiber posts and structures using resin composites with glass fiber posts were affected by water immersion.