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5-years longitudinal study on dental health, oral function and quality of life

Research Project

Project/Area Number 22592148
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Prosthetic dentistry
Research InstitutionOsaka University

Principal Investigator

YOSHIDA Minoru  大阪大学, 大学院・歯学研究科, 招聘教員 (90263293)

Co-Investigator(Kenkyū-buntansha) IKEBE Kazunori  大阪大学, 歯学部附属病院, 講師 (70273696)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords補綴歯科 / 高齢者 / 咬合力 / QOL / 縦断研究 / 歯学 / コホート研究 / 口腔機能 / QoL / 縦断的研究
Research Abstract

This study examined changes in oral health-related quality of life (OHRQoL) among Japanese elderly over a 7-year period. A sample of independently living individuals (aged 60+ years) underwent a questionnaire and dental examination at baseline and 7 years afterward. The Geriatric Oral Health Assessment Index (GOHAI) was used to assess the impact of oral conditions. Occlusal force and salivary flow were also assessed. Of the 411 participants assessed at baseline, 130 (31.6%) accepted to participate after 7 years. There were no significant differences between those lost to follow-up and those assessed at 7 years, except that a higher proportion of the latter rated their baseline general health as good. Among the latter, the overall mean GOHAI score did not change significantly (11.8 at baseline and 11.1 at follow-up; p = 0.16). However, after controlling for age, gender, and baseline GOHAI score, participants who had lost teeth or experienced a decline in occlusal force after 7 years had higher follow-up GOHAI scores (indicating poorer OHRQoL). Unfavorable changes in clinical oral status over time are reflected in poorer self-rated oral health.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (13 results)

All 2013 2012 2011 2010

All Journal Article (4 results) (of which Peer Reviewed: 3 results) Presentation (9 results)

  • [Journal Article] Determinants of change in oral health-related quality of life over 7 years among older Japanese.2013

    • Author(s)
      Enoki K, Ikebe K, Matsuda K, Yoshida M, Maeda Y, Thomson WM
    • Journal Title

      J Oral Rehabil

      Volume: 40 Pages: 252-257

    • Related Report
      2012 Final Research Report
  • [Journal Article] Determinants of change in oral health-related quality of life over 7 years among older Japanese2013

    • Author(s)
      Enoki K, Ikebe K, Matsuda K, Yoshida M, Maeda Y, Thomson WM
    • Journal Title

      J Oral Rehabil

      Volume: 40 Issue: 4 Pages: 252-257

    • DOI

      10.1111/joor.12031

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Validation of the Eichner Index in relation to bite force and masticatory performance2010

    • Author(s)
      Ikebe K, Matsuda K, Murai S, Maeda Y, Nokubi T
    • Journal Title

      Int J Prosthodont

      Volume: 23-6 Pages: 521-524

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prevalence of torus palatinus among a group of Japanese elderly2010

    • Author(s)
      Yoshinaka M, Ikebe K, Furuya-Yoshinaka M, Hazeyama T, Maeda Y
    • Journal Title

      J Oral Rehabil

      Volume: 37-11 Pages: 848-853

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 5年コホートにおける残存歯数が全身疾患罹患に及ぼす影響2012

    • Author(s)
      榎木香織,池邉一典,松田謙一,多田紗弥夏,村井俊介,岡田匡史,久留島悠子,魚田真弘,三原佑介,前田芳信
    • Organizer
      平成24年度日本補綴歯科学会中国・四国支部,九州支部合同学術大会
    • Place of Presentation
      広島市
    • Year and Date
      2012-09-01
    • Related Report
      2012 Final Research Report
  • [Presentation] 健常有歯顎者の加齢および性差が全身の平衡機能に及ぼす影響2012

    • Author(s)
      吉野仙峰, 吉仲正記, 榎木香織, 池邉一典, 前田芳信
    • Organizer
      平成23年度日本補綴歯科学会関西支部学術大会
    • Place of Presentation
      神戸市
    • Year and Date
      2012-02-05
    • Related Report
      2011 Annual Research Report
  • [Presentation] 遊離端欠損における義歯使用状況2012

    • Author(s)
      村井俊介, 池邉一典, 松田謙一, 榎木香織, 宮下祐治, 前田芳信
    • Organizer
      平成23年度日本補綴歯科学会関西支部学術大会
    • Place of Presentation
      神戸市
    • Year and Date
      2012-02-04
    • Related Report
      2011 Annual Research Report
  • [Presentation] 5年コホートにおける残存歯数が全身疾患罹患に及ぼす影響2012

    • Author(s)
      榎木香織,池邉一典,松田謙一,多田紗弥夏,村井俊介,岡田匡史,久留島悠子, 魚田真弘,三原佑介,前田芳信
    • Organizer
      平成24年度日本補綴歯科学会 中国・四国支部,九州支部合同学術大会
    • Place of Presentation
      広島市
    • Related Report
      2012 Annual Research Report
  • [Presentation] 7年間の縦断的研究による高齢者の口腔機能の変化とQOLとの関係.2011

    • Author(s)
      榎木香織,池邉一典,松田謙一,吉田実,前田芳信
    • Organizer
      第120回日本補綴歯科学会学術大会
    • Place of Presentation
      広島市
    • Year and Date
      2011-05-20
    • Related Report
      2012 Final Research Report
  • [Presentation] 7年間の縦断的研究による高齢者の口腔機能の変化とQOLとの関係2011

    • Author(s)
      榎木香織, 池邉一典, 松田謙一, 吉田実, 前田芳信
    • Organizer
      第120回日本補綴歯科学会学術大会
    • Place of Presentation
      広島市
    • Year and Date
      2011-05-20
    • Related Report
      2011 Annual Research Report
  • [Presentation] Factors related to survival of abutments of removable partial dentures2011

    • Author(s)
      Tada S, Ikebe K, Matsuda K, Fujiwara K, Yoshida M, Maeda Y
    • Organizer
      89th I.A.D.R.General Session
    • Place of Presentation
      San Diego
    • Year and Date
      2011-03-18
    • Related Report
      2010 Annual Research Report
  • [Presentation] Longitudinal shifts in OHIP-14 among Japanese elderly in five years.2010

    • Author(s)
      Enoki K, Ikebe K, Matsuda K, Hazeyama T, Maeda Y.
    • Organizer
      88th IADR General Session.
    • Place of Presentation
      Barcelona, Spain.
    • Year and Date
      2010-07-15
    • Related Report
      2012 Final Research Report
  • [Presentation] Longitudinal shifts in OHIP-14 among Japanese elderly in five years.2010

    • Author(s)
      Enoki K, Ikebe K, Matsuda K, Hazeyama T, Maeda Y.
    • Organizer
      88th IADR General Session.
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2010-07-15
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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