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Regional Intervention Study on Oral Function Improvement and Nutrition Improvement Program at the Place of Commuting

Research Project

Project/Area Number 23K20331
Project/Area Number (Other) 20H03873 (2020-2023)
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeMulti-year Fund (2024)
Single-year Grants (2020-2023)
Section一般
Review Section Basic Section 57050:Prosthodontics-related
Research InstitutionHokkaido University

Principal Investigator

Yamazaki Yutaka  北海道大学, 歯学研究院, 教授 (90250464)

Co-Investigator(Kenkyū-buntansha) 渡邊 裕  北海道大学, 歯学研究院, 准教授 (30297361)
本川 佳子  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究員 (60782026)
玉腰 暁子  北海道大学, 医学研究院, 教授 (90236737)
小笠原 克彦  北海道大学, 保健科学研究院, 教授 (90322859)
Project Period (FY) 2024-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2024: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2023: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2022: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywords地域在住高齢者 / 通いの場 / 口腔機能向上 / 栄養改善 / 地域介入研究
Outline of Research at the Start

地域在住高齢者の身体機能、栄養状態と口腔機能を含む口腔の状況と市販弁当等の購入状況を含めた栄養摂取状況、食事パターンを把握し、口腔機能および栄養摂取の状態、食事パターン別に過不足傾向のある栄養素等について分析し、状態別の口腔機能向上・栄養改善プログラムと食事栄養指導マニュアルを作成する。プログラムとマニュアルは無作為化比較対照試験によって効果を検証する。最終的に口腔機能向上・栄養改善プログラムと食事栄養指導マニュアルが、オーラルフレイル対策の推進、フレイル予防、地域包括ケアシステムの推進と健康寿命の延伸に寄与するか医療介護データも含めて検証する。

Outline of Final Research Achievements

In the “Genki Hakken Dock,” which is the main component of this research project, baseline surveys (180 participants in total) and post-intervention surveys (128 participants in total) were conducted. The results showed that 32 (25.0%) participants improved, 67 (52.3%) maintained, and 29 (22.7%) worsened in terms of the number of oral frailty criteria. These results showed that the oral function and nutrition improvement program was effective in maintaining and improving oral function. About the oral function improvement and nutritional improvement program and nutritional guidance by dental hygienists and dietitians, a comparative analysis of the participants before and after the intervention was conducted. Based on the above results, we completed a manual for the oral function improvement and nutritional improvement program and dietary and nutritional guidance.

Academic Significance and Societal Importance of the Research Achievements

オーラルフレイルは口腔の健康指標の代表であった歯数だけでなく、口腔機能にも着眼した包括的な指標で、フレイル対策が重点化された地域包括ケアシステムの中で特に注目されている。また、適切な食事は認知症、フレイル、非感染性疾患を予防し、健康寿命の延伸に寄与するとの報告がある。しかし、口腔の健康と寿命、身体機能、栄養状態との関連はそれぞれ研究が行われてきたが、口腔の健康と栄養の改善を通して、全身の健康に影響することを長期間の介入をもって検証した報告はない。また、地域在住高齢者の口腔機能向上・栄養改善プログラムと食事栄養指導マニュアルを完成させることで、地域包括ケアシステムの推進にも貢献することになる。

Report

(6 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (16 results)

All 2025 2024 2023 2022

All Journal Article (15 results) (of which Peer Reviewed: 15 results,  Open Access: 14 results) Presentation (1 results)

  • [Journal Article] Association of oral frailty with medical expenditure in older Japanese adults: The study of late-stage older adults in Tottori (START Tottori)2025

    • Author(s)
      Arai Eri, Watanabe Yutaka, Nakagawa Sayuri, Ohara Yuki, Iwasaki Masanori, Hirano Hirohiko, Ikebe Kazunori, Ono Takahiro, Iijima Katsuya, Adachi Akira, Watanabe Takao, Yamazaki Yutaka
    • Journal Title

      Gerodontology

      Volume: 42 Issue: 1 Pages: 61-70

    • DOI

      10.1111/ger.12771

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association Between Undernutrition and the Number of Molar Occlusions in Older Persons Requiring Care in Long-Term Care Insurance Facilities2025

    • Author(s)
      Takahashi Koji, Watanabe Yutaka, Okumura Takuma, Tamada Yasushi, Sato Misuzu, Iwasaki Masanori, Shirobe Maki, Hirano Hirohiko, Kugimiya Yoshihiro, Kishima Masako, Ito Kayoko, Iwasa Yasuyuki, Watanabe Yoshihiko, Mizutani Shinsuke, Nakagawa Kazuharu, Komoto Shikekazu, Yamazaki Yutaka
    • Journal Title

      Nutrients

      Volume: 17 Issue: 4 Pages: 630-630

    • DOI

      10.3390/nu17040630

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effectiveness of salivary-gland and oral-mucosa massage in alleviating xerostomia in patients with schizophrenia2025

    • Author(s)
      Iwashima Yuki, Watanabe Yutaka, Ozaki Kimiya, Arai Eri, Miura Kazuhito, Yokoyama Ayako, Kondo Miyako, Nakazawa Seitaro, Oka Matsuhiko, Okada Kazutaka, Matsushita Takae, Yamazaki Yutaka
    • Journal Title

      Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology

      Volume: 37 Issue: 3 Pages: 500-511

    • DOI

      10.1016/j.ajoms.2024.11.011

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oral Health Management by Dental Hygienists and Older Adults' Food Forms in Long-Term Care Facilities: A 1-Year Longitudinal Study2025

    • Author(s)
      Inamoto Kaoru, Ozaki Kimiya, Watanabe Yutaka, Yamazaki Yutaka, Ohara Yuki, Iwasaki Masanori, Hirano Hirohiko, Tsuneishi Midori, Kodama Tsuyoshi, Yoshida Mitsuyoshi, Minakuchi Shunsuke
    • Journal Title

      Gerodontology

      Volume: - Issue: 3 Pages: 00-00

    • DOI

      10.1111/ger.12810

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relationship between Body Mass Index and Sarcopenia with Oral Function Decline in Older Japanese Patients Who Regularly Attend a General Dental Clinic2024

    • Author(s)
      Matsushita Yuya, Watanabe Yutaka, Shirahase Ryuichi, Yamazaki Yutaka
    • Journal Title

      The Journal of Frailty & Aging

      Volume: 13 Issue: 1 Pages: 21-30

    • DOI

      10.14283/jfa.2024.5

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oral frailty, appetite, and dietary variety in late-stage older adults: A cross-sectional study (The STudy of lAte-stage oldeR adulTs in Tottori; START Tottori)2024

    • Author(s)
      Nakagawa Sayuri, Miura Kazuhito, Arai Eri, Taira Kenshu, Watanabe Yutaka, Shirobe Maki, Motokawa Keiko, Ohara Yuki, Iwasaki Masanori, Hirano Hirohiko, Ono Takahiro, Adachi Akira, Watanabe Takao, Yamazaki Yutaka
    • Journal Title

      Geriatrics & Gerontology International

      Volume: 24 Issue: 6 Pages: 626-633

    • DOI

      10.1111/ggi.14892

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association between oral frailty and Prevotella percentage in the oral microbiota of community-dwelling older adults who participated in the CHEER Iwamizawa project, Japan2024

    • Author(s)
      Kimura Chizuru, Miura Kazuhito, Watanabe Yutaka, Baba Haruhisa, Ozaki Kimiya, Hasebe Akira, Ayabe Tokiyoshi, Nakamura Kiminori, Nakaoka Shinji, Ogasawara Katsuhiko, Suzuki Teppei, Saito Hiroshi, Kimura Takashi, Tamakoshi Akiko, Yamazaki Yutaka
    • Journal Title

      Journal of Oral Rehabilitation

      Volume: 51 Issue: 9 Pages: 1721-1729

    • DOI

      10.1111/joor.13767

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association between Death or Hospitalization and Observable Variables of Eating and Swallowing Function among Elderly Residents in Long-Term Care Facilities: A Multicenter Prospective Cohort Study2023

    • Author(s)
      Takeda Maaya、Watanabe Yutaka、Taira Kenshu、Miura Kazuhito、Ohara Yuki、Iwasaki Masanori、Ito Kayoko、Nakajima Junko、Iwasa Yasuyuki、Itoda Masataka、Nishi Yasuhiro、Watanabe Yoshihiko、Kishima Masako、Hirano Hirohiko、Shirobe Maki、Minakuchi Shunsuke、Yoshida Mitsuyoshi、Yamazaki Yutaka
    • Journal Title

      Healthcare

      Volume: 11 Issue: 13 Pages: 1827-1827

    • DOI

      10.3390/healthcare11131827

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association between sarcopenia and oral functions in community-dwelling older adults: A cross-sectional study2023

    • Author(s)
      Kugimiya Y, Iwasaki M, Ohara Y, Motokawa K, Edahiro A, Shirobe M, Watanabe Y, Taniguchi Y, Seino S, Abe T, Obuchi S, Kawai H, Kera T, Fujiwara Y, Kitamura A, Ihara K, Kim H, Shinkai S, Hirano H.
    • Journal Title

      J Cachexia Sarcopenia Muscle

      Volume: 14(1) Issue: 1 Pages: 429-438

    • DOI

      10.1002/jcsm.13145

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association between denture use and food form in older adults requiring long-term care: A multicenter cross-sectional study2022

    • Author(s)
      Kimura-Ono A, Maekawa K, Kuboki T, Nawachi K, Fujisawa M, Sato H, Aita H, Koyama S, Hideshima M, Sato Y, Wake H, Nagao K, Kodaira-Ueda Y, Tamaki K, Sadamori S, Tsuga K, Nishi Y, Sawase T, Koshino H, Masumi S, Sakurai K, Ishibashi K, Ohyama T, Akagawa Y, Hirai T, Sasaki K, et.al.
    • Journal Title

      Journal of Prosthodontic Research

      Volume: 67 Issue: 3 Pages: 366-375

    • DOI

      10.2186/jpr.JPR_D_21_00161

    • ISSN
      1883-1958, 1883-9207
    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] COVID-19-related stress, exercise, and oral health-related quality of life among community-dwelling older adults who participated in the CHEER Iwamizawa project, Japan2022

    • Author(s)
      Miura K, Watanabe Y, Baba H, Ozaki K, Matsushita T, Kondoh M, Okada K, Nakaoka S, Ogasawara K, Suzuki T, Saito H, Kimura T, Tamakoshi A, Yamazaki Y
    • Journal Title

      Sci Rep

      Volume: 12 Issue: 1 Pages: 20347-20347

    • DOI

      10.1038/s41598-022-24806-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Observational variables for considering a switch from a normal to dysphagia diet among older adults requiring long-term care: A one-year multicenter longitudinal study2022

    • Author(s)
      Takeda M, Watanabe Y, Matsushita T, Taira K, Miura K, Ohara Y, Iwasaki M, Ito K, Nakajima J, Iwasa Y, Itoda M, Nishi Y, Furuya J, Watanabe Y, Umemoto G, Kishima M, Hirano H, Sato Y, Yoshida M, Yamazaki Y
    • Journal Title

      International Journal of Environmental Research and Public Health

      Volume: 19 Issue: 11 Pages: 6586-6586

    • DOI

      10.3390/ijerph19116586

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Factors Associated with Food Form in Long-Term Care Insurance Facilities2022

    • Author(s)
      Takeda M, Okada K, Kondo M, Taira K, Watanabe Y, Ito K, Nakajima J, Ozaki Y, Sasaki R, Nishi Y, Furuya J, Akino K, Ohta H, Ohno T, Kodama T, Sakaguchi H, Hanagata T, Sato Y, Yoshida M, Yamazaki Y
    • Journal Title

      Dysphagia

      Volume: 37 Issue: 6 Pages: 1757-1768

    • DOI

      10.1007/s00455-022-10440-6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oral frailty and carriage of oral Candida in community‐dwelling older adults (Check‐up to discover Health with Energy for senior Residents in Iwamizawa; CHEER Iwamizawa)2022

    • Author(s)
      Baba Haruhisa, Watanabe Yutaka, Miura Kazuhito, Ozaki Kimiya, Matsushita Takae, Kondoh Miyako, Okada Kazutaka, Hasebe Akira, Ayabe Tokiyoshi, Nakamura Kiminori, Nakaoka Shinji, Ogasawara Katsuhiko, Suzuki Teppei, Saito Hiroshi, Kimura Takashi, Tamakoshi Akiko, Yamazaki Yutaka
    • Journal Title

      Gerodontology

      Volume: 39 Issue: 1 Pages: 49-58

    • DOI

      10.1111/ger.12621

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Relationship between weight loss and regular dental management of older adults residing in long-term care facilities: A one-year multicenter longitudinal study2022

    • Author(s)
      Sunakawa S, Tsugayasu H, Watanabe Y, Matsushima T, Ohara Y, Iwasaki M, Shirobe M, Ito K, Nakajima J, Iwasa Y, Itoda M, Sasaki R, Nishi Y, Furuya J, Watanabe Y, Ishiguro Y, Hirano H, Sato Y, Yoshida M, Yamazaki Y.
    • Journal Title

      European Geriatric Medicine.

      Volume: 13 Issue: 1 Pages: 221-231

    • DOI

      10.1007/s41999-021-00576-3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 地域在住高齢者におけるオーラルフレイルと口腔関連QOLの関連2024

    • Author(s)
      三浦 和仁, 尾崎 公哉, 横山 亜矢子, 奥村 拓真, 近藤 美弥子, 渡邊 裕, 山崎 裕
    • Organizer
      日本老年歯科医学会第35回学術大会
    • Related Report
      2024 Annual Research Report

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Published: 2020-04-28   Modified: 2026-01-16  

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