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Elucidation of root caries mechanism and consideration of prevention/treatment methods by comprehensive model of demineralization and proteolysis

Research Project

Project/Area Number 19K10418
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57080:Social dentistry-related
Research InstitutionTohoku University

Principal Investigator

MAYANAGI Gen  東北大学, 歯学研究科, 講師 (10451600)

Co-Investigator(Kenkyū-buntansha) 柳田 保子  東京工業大学, 科学技術創成研究院, 教授 (10282849)
鷲尾 純平  東北大学, 歯学研究科, 准教授 (20400260)
高橋 信博  東北大学, 歯学研究科, 教授 (60183852)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords根面う蝕 / 脱灰 / タンパク質分解 / 細菌 / 唾液 / 根面齲蝕
Outline of Research at the Start

超高齢社会の日本において、高齢者の口腔内で増加している根面う蝕に対して適切な予防・治療を行うことは、口腔から健康長寿を達成するための重要な課題である。しかしながら、歯冠部う蝕と比べて、根面う蝕に関する研究は遅れているのが現状であり、根面う蝕の詳細なメカニズムの解明や予防および治療法の検討・開発が急務である。本研究では、無機質の脱灰と根面に多く含まれる有機質(タンパク質)の分解を包括的に検討する新たな根面う蝕モデルを構築し、無機質脱灰機序、歯質に存在するタンパク質分解酵素や唾液および細菌由来のタンパク質分解酵素の根面う蝕への関わりについて解明し、根面う蝕の効果的な予防および治療法を検討する。

Outline of Final Research Achievements

We have developed methods to visualize the distribution of proteolytic enzyme activity in the root tissues and its activation, and investigated the distribution and activation of enzyme activity and the effects of inhibitors on them. As a result, it was proved that the distribution of proteolytic enzyme activity in the root tissue and the enzymes are activated by acid. It was also found that proteolytic enzyme activity was inhibited by chlorhexidine, silver diamine fluoride, epigallocatechin gallate, and calcium hydroxide.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果は、超高齢社会かつ歯周病罹患率の高い現代の日本において増加している根面う蝕のメカニズムの解明に寄与するものである。今後、さらなる根面う蝕の詳細な機序解明および根面う蝕の予防・治療法の開発等への展開が期待でき、超高齢社会の歯科における課題の1つである根面う蝕の抑制へ貢献できると考えられる。

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

    (31 results)

All 2023 2022 2021 2020 2019

All Journal Article (13 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 13 results,  Open Access: 12 results) Presentation (18 results) (of which Int'l Joint Research: 5 results,  Invited: 3 results)

  • [Journal Article] Fluoride ion sensor based on LaF<sub>3</sub> nanocrystals prepared by low-temperature process2023

    • Author(s)
      Yamada T, Kanda K, Yanagida Y, Mayanagi G, Washio, J Takahashi N
    • Journal Title

      Journal of the Ceramic Society of Japan

      Volume: 131 Issue: 3 Pages: 31-36

    • DOI

      10.2109/jcersj2.22127

    • ISSN
      1348-6535, 1882-0743
    • Year and Date
      2023-03-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] In situ detection of endogenous proteolytic activity and the effect of inhibitors on tooth root surface.2023

    • Author(s)
      Sakurai I, Mayanagi G, Yamada S, Takahashi N.
    • Journal Title

      Journal of Dentistry.

      Volume: 印刷中 Pages: 104471-104471

    • DOI

      10.1016/j.jdent.2023.104471

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Facile Fabrication of All-solid-state Ion-selective Electrodes by Laminating and Drop-casting for Multi-sensing2022

    • Author(s)
      Okubo S, Ozeki Y, Yamada T, Saito K, Ishihara N, Yanagida Y, Mayanagi G, Washio J, Takahashi N
    • Journal Title

      Electrochemistry

      Volume: 90 Issue: 7 Pages: 077001-077001

    • DOI

      10.5796/electrochemistry.22-00020

    • ISSN
      1344-3542, 2186-2451
    • Year and Date
      2022-07-06
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A water-soluble glass-based temporary restorative resin inhibited bacteria-induced pH reductions at the bacteria-material interface2022

    • Author(s)
      MAYANAGI Gen、YUFANG Luo、HOSHINO Tomohiro、TAKAHASHI Nobuhiro
    • Journal Title

      Dental Materials Journal

      Volume: 41 Issue: 1 Pages: 95-100

    • DOI

      10.4012/dmj.2021-129

    • NAID

      130008150327

    • ISSN
      0287-4547, 1881-1361
    • Year and Date
      2022-01-25
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Profiling of the microbiota of breast milk before and after feeding with an artificial nipple2022

    • Author(s)
      Sano Hiroto、Wakui Anna、Kawachi Miho、Maruyama Shingo、Moriyama Sachie、Nishikata Mayumi、Washio Jumpei、Abiko Yuki、Mayanagi Gen、Sakashita Reiko、Tanaka Kaori、Takahashi Nobuhiro、Sato Takuichi
    • Journal Title

      Journal of Oral Biosciences

      Volume: 64 Issue: 4 Pages: 431-436

    • DOI

      10.1016/j.job.2022.09.004

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Profiling of the microbiota in the remaining sports drink and orange juice in plastic bottles after direct drinking2022

    • Author(s)
      Kawachi Miho、Wakui Anna、Kaku Nagara、Takahashi Nanase、Maruyama Shingo、Washio Jumpei、Abiko Yuki、Mayanagi Gen、Tanaka Kaori、Takahashi Nobuhiro、Sato Takuichi
    • Journal Title

      Journal of Oral Biosciences

      Volume: 64 Issue: 4 Pages: 437-444

    • DOI

      10.1016/j.job.2022.08.003

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] All-solid-state Fluoride Ion-selective Electrode using LaF3 Single Crystal with Poly(3,4-ethylenedioxythiophene) as Solid Contact Layer.2022

    • Author(s)
      Yamada T, Kanda k, Yanagida Y, Mayanagi G, Washio J, Takahashi N
    • Journal Title

      Electroanalysis

      Volume: 印刷中 Issue: 4

    • DOI

      10.1002/elan.202200103

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Microbiota profiles on the surface of non-woven fabric masks after wearing2022

    • Author(s)
      Maruyama Shingo、Sano Hiroto、Wakui Anna、Kawachi Miho、Kaku Nagara、Takahashi Nanase、Miyazawa Misato、Abe Takashi、Sato Aya、Washio Jumpei、Abiko Yuki、Mayanagi Gen、Tanaka Kaori、Takahashi Nobuhiro、Sato Takuichi
    • Journal Title

      Journal of Oral Biosciences

      Volume: 64 Issue: 3 Pages: 376-379

    • DOI

      10.1016/j.job.2022.07.002

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Profiling of microbiota at the mouth of bottles and in remaining tea after drinking directly from plastic bottles of tea2021

    • Author(s)
      Wakui A*, Sano H*, Hirabuki Y*, Kawachi M, Aida A, Washio J, Abiko Y, Mayanagi G, Yamaki K, Tanaka K, Takahashi N, Sato T
    • Journal Title

      Dentistry Journal

      Volume: 9 Issue: 6 Pages: 58-58

    • DOI

      10.3390/dj9060058

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bacterial amounts and compositions in liquid baby formula and a baby drink consumed with an artificial nipple.2021

    • Author(s)
      Wakui A, Sano H, Kawachi M, Aida A, Takenaka Y, Yonezawa A, Nakahata N, Moriyama S, Nishikata M, Washio J, Abiko Y, Mayanagi G, Yamaki K, Sakashita R, Tanaka K, Takahashi N, Sato T
    • Journal Title

      J Oral Biosci.

      Volume: 印刷中 Issue: 2 Pages: 161-168

    • DOI

      10.1016/j.job.2021.03.001

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Profiling system of oral microbiota utilizing polymerase chain reaction-restriction fragment length polymorphism analysis2021

    • Author(s)
      Sano H, Wakui A, Kawachi M, Washio J, Abiko Y, Mayanagi G, Yamaki K, Tanaka K, Takahashi N, Sato T
    • Journal Title

      Journal of Oral Biosciences

      Volume: 63 Issue: 3 Pages: 292-297

    • DOI

      10.1016/j.job.2021.05.003

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electrochemical evaluation of the hydrogen peroxide- and fluoride-induced corrosive property and its recovery on the titanium surface2020

    • Author(s)
      Furiya-Sato S, Fukushima A, Mayanagi G, Sasaki K, Takahashi N
    • Journal Title

      Journal of Prosthodontic Research

      Volume: 64 Issue: 3 Pages: 307-312

    • DOI

      10.1016/j.jpor.2019.09.002

    • NAID

      130007885745

    • ISSN
      1883-1958, 1883-9207
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Profiling of microbiota in liquid baby formula consumed with an artificial nipple2019

    • Author(s)
      SANO Hiroto、WAKUI Anna、KAWACHI Miho、KATO Rito、MORIYAMA Sachie、NISHIKATA Mayumi、WASHIO Jumpei、ABIKO Yuki、MAYANAGI Gen、YAMAKI Keiko、SAKASHITA Reiko、TOMIDA Junko、KAWAMURA Yoshiaki、TANAKA Kaori、TAKAHASHI Nobuhiro、SATO Takuichi
    • Journal Title

      Biomedical Research

      Volume: 40 Issue: 4 Pages: 163-168

    • DOI

      10.2220/biomedres.40.163

    • NAID

      130007689885

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 唾液組成のモニタリングに向けた全固体型イオン選択電極の マイクロ流路への統合2022

    • Author(s)
      大関祥久,山田哲也、石原昇、栁田保子、真柳弦、鷲尾純平、高橋信博
    • Organizer
      令和4年度生体医歯工学共同研究拠点成果報告会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Metabolic functions of the oral microbiome: How does the oral microbiome function and contribute to our health?2022

    • Author(s)
      Washio J, Mayanagi G, Abiko Y, Tagaino R, Dimas Prasetianto Wicaksono, Domon H, Ezoe K, Sato S, Takahashi N
    • Organizer
      International Symposium for Interface Oral Health Science 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Profiling of Microbiota in Liquid Baby Formula and a Baby Drink Consumed with an Artificial Nipple.2022

    • Author(s)
      Wakui A, Kawachi M, Nishikata M, Washio J, Abiko Y, Mayanagi G, Takahashi N, Sato T
    • Organizer
      International Symposium for Interface Oral Health Science 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Profiling of Microbiota in Sport-Drink and Orange Juice of Plastic Bottle After Drinking Directly From Plastic Bottles.2022

    • Author(s)
      Kawachi M, Wakui A, Washio J, Abiko Y, Mayanagi G, Takahashi N, Sato T
    • Organizer
      International Symposium for Interface Oral Health Science 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 飲みかけのペットボトル飲料物から検出される細菌の量・構成(第 4 報)、緑茶についての解析2022

    • Author(s)
      宮沢美里、河内美帆、涌井杏奈、臼田紫乃、今井真奈美、坂井ふたば、佐藤遥菜、加藤優希、佐藤 彩、高橋七瀬、賀来ながら、樋口真由、鷲尾純平、安彦友希、眞柳 弦、高橋信博、佐藤拓一
    • Organizer
      第11回口腔保健用機能性食品研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] 口腔内マルチイオン計測に向けた全固体イオン選択電極の開発2022

    • Author(s)
      大関祥久、山田哲也、大久保信吾、齊藤滉佑、石原昇、真柳弦、鷲尾純平、髙橋信博、栁田保子
    • Organizer
      令和3年度生体医歯工学共同研究拠点成果報告会/第12回IDEA連携シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] 全固体イオン選択電極のマイクロ流路への統合2022

    • Author(s)
      大関祥久、山田哲也、石原昇、栁田保子、真柳弦、鷲尾純平、高橋信博
    • Organizer
      2022年度精密工学会春季大会学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] Integration of all-solid-state electrode into the fluidic channel sensors for saliva monitoring2021

    • Author(s)
      Ozeki Y, Yamada T, Ishihara N, Yanagida Y, Mayanagi G, Washio J, Takahashi N
    • Organizer
      第6回生体医歯工学共同研究拠点国際シンポジウム
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 根面う蝕モデル:酸による根面内在性タンパク分解酵素の活性化2021

    • Author(s)
      櫻井泉、真柳弦、山田聡、高橋信博
    • Organizer
      第63回歯科基礎医学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 口腔内マルチイオン計測に向けた全固体イオン選択電極の開発2021

    • Author(s)
      真柳弦,鷲尾純平,高橋信博,大久保信吾,山田哲也,石原昇,栁田保子
    • Organizer
      令和2年度生体医歯工学共同研究拠点成果報告会
    • Related Report
      2020 Research-status Report
  • [Presentation] 口腔内環境モニタリングに向けた全固体イオン選択電極センサアレイの開発と多変量解析アルゴリズムの検討2020

    • Author(s)
      大久保信吾,石原昇,山田哲也,栁田保子,真柳弦,鷲尾純平,高橋信博
    • Organizer
      日本化学会第15回バイオ関連化学シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] Profiling of Microbiota of Baby-Drinks after Drinking with Artificial Nipples2020

    • Author(s)
      Wakui A, Sano H, Kawachi M, Masuda N, Maruyama S, Washio J, Abiko Y, Mayanagi G, Yamaki K, Takahashi N, Okada Y, Sato T
    • Organizer
      第62回歯科基礎医学会学術大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 母乳および新生児の口腔内の細菌叢解析:保管による影響について2020

    • Author(s)
      佐野拓人、涌井杏奈、河内美帆、森山幸枝、西方真弓、鷲尾純平、安彦友希、真柳 弦、高橋信博、佐藤拓一
    • Organizer
      第9回口腔保健用機能性食品研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] 哺ニプル(哺乳瓶用乳首)を通した、口腔から液体ミルク内への流入2020

    • Author(s)
      涌井杏奈、佐野拓人、河内美帆、鷲尾純平、安彦友希、真柳 弦、高橋信博、佐藤拓一
    • Organizer
      第9回口腔保健用機能性食品研究会
    • Related Report
      2019 Research-status Report
  • [Presentation] 口腔内マルチイオン測定マイクロデバイスのためのカルシウムイオン選択電極の作製2020

    • Author(s)
      真柳弦,髙橋信博,齊藤滉佑,石原昇,栁田保子
    • Organizer
      令和元年度生体医歯工学研究拠点成果報告会
    • Related Report
      2019 Research-status Report
  • [Presentation] Diamond-like carbon膜コーティング・チタンのバイオフィルム形成抑制効果の検討2019

    • Author(s)
      真柳 弦, 佐藤 秀明, 石幡 浩志, 吉川 亮太, 藤本 佑典, 山田 聡, 高橋 信博
    • Organizer
      第62回春季日本歯周病学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Profiling of microbiota in baby-drinks and liquid baby formula consumed with an artificial nipple2019

    • Author(s)
      Wakui A, Sano H, Kawachi M, Kato R, Washio J, Abiko Y, Mayanagi G, Yamaki K, Takahashi N, Sato T
    • Organizer
      第61回歯科基礎医学会学術大会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Involvementt of oral bacteria -Importance of analyzing bacterial metabolic activity-2019

    • Author(s)
      Washio J, Mayanagi G, Abiko Y, Yanagida Y, Takahashi N
    • Organizer
      第4回生体医歯工学共同研究拠点国際シンポジウム
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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

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