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A structural equation model to investigate the relationship between prognostic indicators for conventional complete denture therapy

Research Project

Project/Area Number 26861628
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Prosthodontics/ Dental materials science and
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Eijiro Yamaga  東京医科歯科大学, 歯学部附属病院, 非常勤講師 (30706875)

Research Collaborator Sato Yusuke  
Soeda Hitomi  
Minakuchi Shunsuke  
Project Period (FY) 2014-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords全部床義歯 / 無歯顎者 / 臨床予後 / 口腔乾燥 / 神経症傾向 / 共分散構造分析 / 義歯使用年数 / OHRQoL / データ取得 / 全部床義歯の予後因子 / データの取得 / 無歯顎患者 / 臨床予後因子
Outline of Final Research Achievements

1. Participants: Participant characteristics, oral condition, the quality of previous and new dentures, perceived chewing ability, participants' denture satisfaction, and oral health-related quality of life (OHRQoL) were investigated. 2. Prognostic indicators for complete denture therapy: The present study demonstrated that stability of mandibular denture, accuracy of jaw relation recording, mandibular ridge form, usage period of previous dentures are important to ensure successful complete denture therapy. 3. Limitation: Newly developed or improved measurements are needed to solve the ceiling effect or to capture the better quality of dentures and OHRQoL. It is necessary that the influence of dry mouth on OHRQoL is investigated.

Academic Significance and Societal Importance of the Research Achievements

本研究による成果から、上下総入れ歯の成功因子を確認できた。これにより例えば、新らしい義歯を作製する時に、これらを検査することで患者さんに治療予後の見通しを伝えることが可能となるだろう。また、本研究では今までの統計手法(関連や差を見出す方法)では見出すことが困難であった複雑な関係性を特殊な統計方法により解決した(複数の成功因子間の影響の強弱、方向性、有意性を示した)。これにより例えば、上下総入れ歯の成功因子であると考えられる神経症傾向や下顎の形状の不利な患者さんを設備の整った施設(例えば大学病院)に紹介することで効率的に医療資源を分配できるようになるだろう。

Report

(6 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (6 results)

All 2019 2018 2017 2015

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (1 results)

  • [Journal Article] Structural equation modeling of the impact of mandibular ridge form and denture quality on oral health-related quality of life in complete denture wearers2019

    • Author(s)
      Yamaga Eijiro、Sato Yusuke、Soeda Hitomi、Minakuchi Shunsuke
    • Journal Title

      Journal of Prosthodontic Research

      Volume: 63 Issue: 3 Pages: 293-298

    • DOI

      10.1016/j.jpor.2018.12.011

    • NAID

      130007706153

    • ISSN
      1883-1958, 1883-9207
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relationship between oral health-related quality of life and usage period of complete dentures2019

    • Author(s)
      Yamaga Eijiro、Sato Yusuke、Soeda Hitomi、Minakuchi Shunsuke
    • Journal Title

      The International Journal of Prosthodontics

      Volume: in press

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A structural equation model to test a conceptual framework of oral health in Japanese edentulous patients with an item weighting method using factor score weights: a cross-sectional study2018

    • Author(s)
      Yamaga Eijiro、Sato Yusuke、Minakuchi Shunsuke
    • Journal Title

      BMC Oral Health

      Volume: 18 Issue: 1 Pages: 71-71

    • DOI

      10.1186/s12903-018-0527-1

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] An intervention study to test Locker’s conceptual framework of oral health in edentulous elders2018

    • Author(s)
      Yamaga Eijiro、Sato Yusuke、Minakuchi Shunsuke
    • Journal Title

      Gerodontology

      Volume: - Issue: 3 Pages: 260-267

    • DOI

      10.1111/ger.12351

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] A structural equation model to assess the influence of neuroticism on oral health-related quality of life in complete denture wearers2017

    • Author(s)
      Soeda Hitomi、Sato Yusuke、Yamaga Eijiro、Minakuchi Shunsuke
    • Journal Title

      Gerodontology

      Volume: 34 Issue: 4 Pages: 446-454

    • DOI

      10.1111/ger.12291

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] SEM analysis on OHIP subscales for neurotic complete denture wearers2015

    • Author(s)
      Hitomi Soeda, Eijiro Yamaga, Yusuke Sato, Shunsuke Minakuchi
    • Organizer
      IADR
    • Place of Presentation
      Boston(USA)
    • Year and Date
      2015-03-11 – 2015-03-14
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2020-03-30  

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