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Investigation of the removable partial denture design based on the in vivo 3-D force analyses on the abutment tooth of the removable partial denture

Research Project

Project/Area Number 15390583
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 補綴理工系歯学
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

SASAKI Keiichi  Tohoku University, Graduate School of Dentistry, Professor, 大学院・歯学研究科, 教授 (30178644)

Co-Investigator(Kenkyū-buntansha) KURIYAGAWA Tsunemoto  Tohoku University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (90170092)
INAI Tetsuji  Tohoku University, Hospital, Lecturer, 病院・講師 (60193538)
KOYAMA Shigeto  Tohoku University, Hospital, Lecturer, 病院・講師 (10225089)
KAWATA Tetsuo  Tohoku University, Graduate School of Dentistry, Assistant Professor, 大学院・歯学研究科, 助手 (80292225)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥11,700,000 (Direct Cost: ¥11,700,000)
Fiscal Year 2005: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2004: ¥4,800,000 (Direct Cost: ¥4,800,000)
Fiscal Year 2003: ¥4,600,000 (Direct Cost: ¥4,600,000)
Keywordspartial denture / abutment tooth / piezo-electric transducer / load measurement / 3-dimensional / 生体内測定 / 圧電式センサ / 支台歯荷重 / インプラント / 荷重
Research Abstract

The purpose of this study is to clarify the behavior of the load applied to the abutment tooth by means of the 3-dimensional force measuring device with a piezo-electric transducer that we have developed. It is important to know that load for partial denture design including the selection of the abutment tooth and occlusal scheme. The custom-made force measuring device comprised an inner part forming a metal core, a force transducer, and an outer part forming a metal crown.
The subjects were a young male with natural dentition and an old female with partial edentulous dentition. Informed consent was obtained after full explanation of this study. The experimental teeth were the maxillary left second molar of dentulous subject and mandibular right second premolar of partial edentulous subject.
When the partial edentulous subject wearing the denture with distal rest clenched maximally, the magnitude of the load applied to the abutment tooth decreased significantly than without the denture. When the partial edentulous subject wearing the denture with medial rest clenched maximally, the angle of the load direction was decreased significantly than without the denture. On the other hand, there was significant difference between the angles with the medial rest and with the distal rest. When the partial edentulous subject wearing the denture with distal rest clenched maximally, the angle of the load direction was increased significantly than the denture with medial rest. The force vector with the medial and distal rests directed most laterally, and that with the medial rest directed most downward. There was not significant difference among the directions of four different conditions in the frontal plane.
In the dentulous subject, The maximum magnitude was 173.3±15.3N during MVC. As the magnitude of the compressive force increased, the load direction changed three dimensionally. Tractive forces were recorded throughout the chewing the sticky food.

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • Research Products

    (11 results)

All 2006 2005 2004 2003 Other

All Journal Article (9 results) Publications (2 results)

  • [Journal Article] In vivo 3-dimensional measurement of the force exerted on a tooth during clenching2006

    • Author(s)
      T Kawaguchi, T Kawata, T Kuriyagawa, K Sasaki
    • Journal Title

      J Biomech (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] In vivo 3-dimensional measurement of the force exerted on a tooth during clenching2006

    • Author(s)
      T Kawaguchi, T Kawata, T Kuriyagawa, K Sasaki
    • Journal Title

      J of Biomech (In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] The Behavior of 3-Dimentional force exerted on a tooth during function2006

    • Author(s)
      T Kawata, N Yoda, T Kawaguchi, T Kuriyagawa, K Sasaki
    • Journal Title

      J Oral Rehabil (In press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] In vivo 3-Dimensional Force Measurement in Teeth during Functions2005

    • Author(s)
      N Yoda, T Kawata, H Suenaga, T Kuriyagawa, K Sasaki
    • Journal Title

      J Dent Res (In press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] In vivo 3-dimensional measurement of the force exerted on a tooth during clenching2005

    • Author(s)
      T Kawaguchi, T Kawata, T Kuriyagawa, K Sasaki
    • Journal Title

      J Biomech (In press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] In vivo 3-Dimensional Force Measurement in Teeth during Functions2005

    • Author(s)
      Yoda N, Kawata T, Suenaga H, Kuriyagawa T, Sasaki K
    • Journal Title

      J Dent Res (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] In vivo 3-D force measurement on the abutment tooth of removable partial denture2004

    • Author(s)
      Kawaguchi T, Kawata T, Sasaki K, Kuriyagawa T
    • Journal Title

      Int J Prosthodont (In print)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 小型水晶圧電式センサによる部分床義歯支台歯の荷重測定2003

    • Author(s)
      川口威史, 川田哲男, 佐々木啓一, 厨川常元
    • Journal Title

      補綴誌 47・109

      Pages: 69-69

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] In vivo Force Measurement in Abutment Tooth of Partial Denture with Piezo-electric Transducer2003

    • Author(s)
      Kawaguchi T, Kawata T, Sasaki K, Kuriyagawa T
    • Journal Title

      Japan Prosthodontic Society 69

      Pages: 47-109

    • NAID

      10013972777

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Publications] Kawaguchi T, Kawata T, Sasaki K, Kuriyagawa T: "In vivo 3-D force measurement on the abutment tooth of removable partial denture"Int J Prosthodont. (in print). (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] 川口威史, 川田哲男, 佐々木啓一, 厨川常元: "小型水晶圧電式センサによる部分床義歯支台歯の荷重測定"第109回日本補綴歯科学会抄録集. 47・109. 69 (2003)

    • Related Report
      2003 Annual Research Report

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Published: 2003-04-01   Modified: 2016-04-21  

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