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Development of a bacteriological diagnostic method and treatment for peri-implantitis

Research Project

Project/Area Number 19K10164
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57040:Regenerative dentistry and dental engineering-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Tatsuro Koyanagi  東京医科歯科大学, 東京医科歯科大学病院, 非常勤講師 (70632173)

Co-Investigator(Kenkyū-buntansha) 佐藤 博紀  東京医科歯科大学, 歯学部, 非常勤講師 (10804586)
芝 多佳彦  東京医科歯科大学, 大学院医歯学総合研究科, 助教 (90802306)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsインプラント周囲炎 / 歯周炎 / 細菌叢解析 / 歯周治療 / 次世代シーケンサー / メタ16S解析 / ゲノム解析 / メタ16S解析 / メタゲノム解析
Outline of Research at the Start

本研究の目的は治療が難しいとされているインプラント周囲炎の原因究明と新規診断・治療法である。インプラント周囲炎・歯周炎が存在する患者の口腔内から、各疾患罹患部位のプラークを採取し、メタトランスクリプトーム解析により歯周炎・イ ンプラント周囲炎それぞれで活動性の高い細菌種と機能遺伝子を網羅的に調べる。治療の前後でこれらのデータを比較し細菌学的見地から疾患の原因究明と新規診断治療法の開発を行う。

Outline of Final Research Achievements

This study aimed to establish a novel bacteriological diagnostic method by examining the correlation between the bacterial flora of peri-implantitis treatment and treatment efficacy. We confirmed that the bacterial species composition approached a healthy state after treatment intervention. In particular, the periodontal disease-associated bacteria Porphyromonas spp. decreased and Streptococcus spp. increased. The Porphyromonas/Streptococcus ratio may be a new indicator for predicting treatment efficacy and prognosis. This study is an important achievement that will lead to the development of new diagnostic and therapeutic protocols.

Academic Significance and Societal Importance of the Research Achievements

本研究により、インプラント周囲炎治療の細菌叢変化と治療効果の間の関連性を明らかにした。特に、PorphyromonasとStreptococcusの比率が重要な指標であることを確認し、これはインプラント周囲炎の新たな診断方法となり得ると考えている。この研究結果は、細菌学的な手法を用いて診断をや治療効果を判断し、適切な介入を効果的に行うことを可能にすることで、患者の生活の質の向上に寄与することができる。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (7 results)

All 2021 2020 2019

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (3 results) (of which Int'l Joint Research: 1 results) Book (1 results)

  • [Journal Article] Non-surgical treatment for periodontitis and peri-implantitis: longitudinal clinical and bacteriological findings?A case report with a 7-year follow-up evaluation2021

    • Author(s)
      Shiba Takahiko、Watanabe Takayasu、Komatsu Keiji、Koyanagi Tatsuro、Nemoto Takashi、Ohsugi Yujin、Michi Yasuyuki、Katagiri Sayaka、Takeuchi Yasuo、Ishihara Kazuyuki、Iwata Takanori
    • Journal Title

      SAGE Open Medical Case Reports

      Volume: 9 Pages: 2050313-2050313

    • DOI

      10.1177/2050313x211029154

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Discrimination of Bacterial Community Structures among Healthy, Gingivitis, and Periodontitis Statuses through Integrated Metatranscriptomic and Network Analyses2021

    • Author(s)
      Nemoto Takashi、Shiba Takahiko、Komatsu Keiji、Watanabe Takayasu、Shimogishi Masahiro、Shibasaki Masaki、Koyanagi Tatsuro、Nagai Takahiko、Katagiri Sayaka、Takeuchi Yasuo、Iwata Takanori
    • Journal Title

      mSystems

      Volume: 6 Issue: 6

    • DOI

      10.1128/msystems.00886-21

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Discriminating Microbial Community Structure Between Peri-Implantitis and Periodontitis With Integrated Metagenomic, Metatranscriptomic, and Network Analysis2020

    • Author(s)
      Komatsu Keiji、Shiba Takahiko、Takeuchi Yasuo、Watanabe Takayasu、Koyanagi Tatsuro、Nemoto Takashi、Shimogishi Masahiro、Shibasaki Masaki、Katagiri Sayaka、Kasugai Shohei、Iwata Takanori
    • Journal Title

      Frontiers in Cellular and Infection Microbiology

      Volume: 10 Pages: 596490-596490

    • DOI

      10.3389/fcimb.2020.596490

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Omics analysis defines differences in microbial community structure between peri-implantitis and periodontitis.2020

    • Author(s)
      Komatsu Keiji、Takeuchi Yasuo、Shiba Takahiko、Watanabe Takayasu、Shimogishi Masahiro、Shibasaki Masaki、Nemoto Takashi、Koyanagi Tatsuro、Katagiri Sayaka、Iwata Takanori
    • Organizer
      The 68th Annual Meeting of Japan Dental Research.
    • Related Report
      2020 Research-status Report
  • [Presentation] Non-surgical treatment and microbiome of periodontitis and peri-implantitis: seven-year.2020

    • Author(s)
      Komatsu Keiji、 Shiba Takahiko、Watanabe Takayasu、Nemoto Takashi、Koyanagi Tatsuro、Iwata Takanori.
    • Organizer
      The 106th Annual Meeting of the American Academy of Periodontology in collaboration with the Japanese Society of Periodontology and Japanese Academy of Clinical Periodontology.
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 網羅的な細菌叢解析による歯周炎とインプラント周囲炎の菌叢構造比較2019

    • Author(s)
      駒津匡二,芝 多佳彦,渡辺孝康,小柳達郎,根本 昂,佐藤博紀,前川祥吾,片桐さやか, 竹内康雄,岩田隆紀
    • Organizer
      第150回 日本歯科保存学会春季学術大会
    • Related Report
      2019 Research-status Report
  • [Book] 歯科医師・研究者チームによる歯周治療のコンセンサス 4 インプラント周囲疾患2021

    • Author(s)
      世話人:吉江弘正、二階堂雅彦、畑めぐみ 執筆:和泉雄一、駒津匡二、小柳達郎、竹内康雄、芝 多佳彦
    • Total Pages
      132
    • Publisher
      インターアクション
    • ISBN
      9784909066411
    • Related Report
      2021 Research-status Report

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Published: 2019-04-18   Modified: 2024-01-30  

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