下顎運動時の下顎骨の変形に対するインプラント連結の影響 : 三次元有限要素法による解析  [in Japanese] Influence of Implant Connection on Mandibular Flexure in Jaw Movement : Three-dimensional Finite Element Analysis  [in Japanese]

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Author(s)

    • 野田 美幸 NODA Miyuki
    • 徳島大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics.The University of Tokushima, School of Dentistry
    • 石川 正俊 ISHIKAWA Masatoshi
    • 徳島大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics.The University of Tokushima, School of Dentistry
    • 市川 哲雄 ICHIKAWA Tetsuo
    • 徳島大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics.The University of Tokushima, School of Dentistry
    • 蟹谷 英生 KANITANI Hideo
    • 徳島大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics.The University of Tokushima, School of Dentistry
    • 友竹 偉則 TOMOTAKE Yoritoki
    • 徳島大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics.The University of Tokushima, School of Dentistry
    • 川本 苗子 KAWAMOTO Naeko
    • 徳島大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics.The University of Tokushima, School of Dentistry
    • 永尾 寛 NAGAO Kan
    • 徳島大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics.The University of Tokushima, School of Dentistry
    • 河野 文昭 KAWANO Fumiaki
    • 徳島大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics.The University of Tokushima, School of Dentistry
    • 羽田 勝 HADA Masaru
    • 徳島大学歯学部歯科補綴学第一講座 Department of Removable Prosthodontics.The University of Tokushima, School of Dentistry

Abstract

In the previous report, the relative position between two implants was measured during jaw movements, and mandibular flexure was evaluated as the change. In the present study, three-dimensional finite element models were constructed so that six titanium implants were placed in the right half of the mandible, and three models were prepared: 1) Connected: all implants were connected, 2) Anterior only: anterior three implants only were connected, and 3) Not connected: no implant was connected. The influence of the connection on the implant and the surrounding bone determined by linear static stress analysis of 3-D finite element model was discussed.<BR>The results were as follows:<BR>1. The inside loading value applied to the mandibular condyle was calculated from the implant deviation data of previous reports. The value was 20 N.<BR>2. In three models the implant was deviated medial-backward and the deviation drastically increased from the Implant No.4 region.<BR>3. The stress of 8 MPa around the implant in the “Not connected” model was observed, and that of “Anterior only” and “Connected” models was lower.<BR>It was suggested that implant connection hardly affects the implant and the surrounding bone during mandibular flexure in jaw movements.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 42(4), 580-585, 1998-08-10

    Japan Prosthodontic Society

References:  19

Cited by:  4

Codes

  • NII Article ID (NAID)
    10008170269
  • NII NACSIS-CAT ID (NCID)
    AN00197911
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03895386
  • Data Source
    CJP  CJPref  J-STAGE 
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