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Establishing key aspects of non-drilling carious treatments based on quantum and X-ray beam technologies

Research Project

Project/Area Number 20H00552
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 57:Oral science and related fields
Research InstitutionOsaka University

Principal Investigator

Hayashi Mikako  大阪大学, 大学院歯学研究科, 教授 (40271027)

Co-Investigator(Kenkyū-buntansha) 奥山 克史  朝日大学, 歯学部, 准教授 (00322818)
山下 弘巳  大阪大学, 大学院工学研究科, 教授 (40200688)
松田 康裕  北海道医療大学, 歯学部, 准教授 (50431317)
山本 洋子  大阪大学, 大学院歯学研究科, 招へい教員 (60448107)
岡本 基岐  大阪大学, 大学院歯学研究科, 助教 (60755354)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥44,460,000 (Direct Cost: ¥34,200,000、Indirect Cost: ¥10,260,000)
Fiscal Year 2023: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2022: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Fiscal Year 2021: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2020: ¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
Keywordsう蝕 / 象牙質 / PIXE/PIGE / μCT / ラマン分光分析法 / 飛行時間型2次イオン分析法 / PIXE/PIGE法 / 根面う蝕 / イオン分布 / バイオミネラリゼーション / 耐酸性 / 口腔科学 / 量子ビーム / X線光電子分光法 / 動物モデル / ミネラル密度 / X線結晶回折法 / X線光電子分光法
Outline of Research at the Start

本申請では、従前の歯科臨床を、バイオミネラリゼーションを基軸とした生物学的なう蝕予防・治療へと大きく変換させるという理念のもとに、量子・X線ビームを応用した原子・電子レベルの超精密構造・機能解析によって、う蝕の発症および進行抑制に歯質構成元素が如何なるメカ ニズムで相互に作用しながら関与しているかを解き明かすことを目的としている。先端的な量子・X線ビーム技術を用いて、歯質内の元素の濃度分布や化学結合状態をイメージングすることで、う蝕予防および進行抑制のメカニズムについて元素レベルでの深い理解を構築し、効果的な「削らない」う蝕予防・治療技術および材料開発を飛躍的に発展させることを企図している。

Outline of Final Research Achievements

The aim of this study was to elucidate the mechanisms by which dentin components are involved in the development and inhibition of dental caries.
First, in vitro multi-element cements were applied to the dentin of human molars, and the anti-caries properties of the dentin were investigated using μCT, PIXE/PIGE, XDR, and XPS by analyzing the distributions, concentrations, and chemical bonding of the elements.
An in vivo rat caries treatment model was developed using the in vitro methods, and the uptake of multi-ions into dentin was successfully measured by μCT, PIXE/PIGE, Raman spectroscopy, and time-of-flight secondary ion analysis.

Academic Significance and Societal Importance of the Research Achievements

本研究は、バイオミネラリゼーションを基軸とした生物学的なう蝕予防・治療を実現するという理念のもと、原子・電子レベルの超精密構造・機能解析によって、う蝕の発症および進行抑制に歯質構成元素がいかなるメカニズムで関与しているかを解明することを目的とした。
そこでは、in vitroで確立した実験方法をin vivoラットう蝕治療モデルに適用し、マルチイオンが歯質に取り込まれる様相を、μCT、PIXE/PIGE法、ラマン分光分析法と飛行時間型2次イオン分析法にて測定することに成功した。この成果は、う蝕の進行および発症メカニズムを明らかにし、抗う蝕性の高い修復材料の開発の基盤となる、意義あるものである。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Comments on the Screening Results   Annual Research Report
  • Research Products

    (42 results)

All 2024 2023 2022 2021 2020

All Journal Article (20 results) (of which Int'l Joint Research: 11 results,  Peer Reviewed: 19 results,  Open Access: 17 results) Presentation (22 results) (of which Int'l Joint Research: 7 results,  Invited: 3 results)

  • [Journal Article] Clinical investigation of the inhibitory effects of tooth-coating materials on initial active root caries: A pilot randomized controlled trial.2024

    • Author(s)
      Asahi Y, Naito K, Kanda H, Niwano K, Takegawa D, Yumoto H, Noiri Y, Hayashi M.
    • Journal Title

      Medicina

      Volume: 60 Issue: 1 Pages: 150-150

    • DOI

      10.3390/medicina60010150

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Analyzing the anti-caries effect of fluoride varnish containing tricalcium phosphate using PIXE/PIGE2023

    • Author(s)
      Uemura R., Yamamoto H., Naito K., Kanda H., Takahashi Y., Hayashi M.
    • Journal Title

      Dental Materials Journal

      Volume: 42 Issue: 4 Pages: 591-597

    • DOI

      10.4012/dmj.2022-252

    • ISSN
      0287-4547, 1881-1361
    • Year and Date
      2023-07-25
    • Related Report
      2023 Annual Research Report
  • [Journal Article] Development of Rat Caries-Induced Pulpitis Model for Vital Pulp Therapy2023

    • Author(s)
      Huang H.、Okamoto M.、Watanabe M.、Matsumoto S.、Moriyama K.、Komichi S.、Ali M.、Matayoshi S.、Nomura R.、Nakano K.、Takahashi Y.、Hayashi M.
    • Journal Title

      Journal of Dental Research

      Volume: ‐ Issue: 5 Pages: 574-582

    • DOI

      10.1177/00220345221150383

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Lithium carbonate accelerates the healing of apical periodontitis2023

    • Author(s)
      Kagioka Takumi、Itoh Shousaku、Hue Mai Thi、Abe Makoto、Hayashi Mikako
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 7886-7886

    • DOI

      10.1038/s41598-023-34700-z

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Repair of an Extensive External Cervical Resorption Lesion Using Intentional Replantation with Crown Rotation2023

    • Author(s)
      Okamoto Motoki、Asahi Yoko、Duncan Henry Fergus、Kuriki Nanako、Takahashi Yusuke、Hayashi Mikako
    • Journal Title

      Case Reports in Dentistry

      Volume: - Pages: 1-10

    • DOI

      10.1155/2023/2103999

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Sound Environment during Dental Treatment in Relation to COVID-19 Pandemic2023

    • Author(s)
      Yamada Tomomi、Nozaki Kazunori、Hayashi Mikako、Kuwano Sonoko
    • Journal Title

      Acoustics

      Volume: 5 Issue: 4 Pages: 987-998

    • DOI

      10.3390/acoustics5040056

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] An efficient annotation method for image recognition of dental instruments2023

    • Author(s)
      Oka Shintaro、Nozaki Kazunori、Hayashi Mikako
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 1-10

    • DOI

      10.1038/s41598-022-26372-y

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Biological Evaluation of the Effect of Root Canal Sealers Using a Rat Model.2022

    • Author(s)
      Okamoto M, Matsumoto S, Moriyama K, Huang H, Watanabe M, Miura J. Sugiyama K, Hirose Y, Manabu M, Kuriki N, Leprince JG, Takahashi Y, Kawabata S, Hayashi M.
    • Journal Title

      Pharmaceutics

      Volume: 14 Issue: 10 Pages: 2038-2038

    • DOI

      10.3390/pharmaceutics14102038

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Novel Functional Peptide for Next-Generation Vital Pulp Therapy2022

    • Author(s)
      Watanabe M.、Okamoto M.、Komichi S.、Huang H.、Matsumoto S.、Moriyama K.、Ohshima J.、Abe S.、Morita M.、Ali M.、Takebe K.、Kozaki I.、Fujimoto A.、Kanie K.、Kato R.、Uto K.、Ebara M.、Yamawaki-Ogata A.、Narita Y.、Takahashi Y.、Hayashi M.
    • Journal Title

      Journal of Dental Research

      Volume: 102 Issue: 3 Pages: 322-330

    • DOI

      10.1177/00220345221135766

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Inhibition of Demineralization of Dentin by Fluoride-Containing Hydrogel Desensitizers: An In Vitro Study2022

    • Author(s)
      Matsuda Yasuhiro、Altankhishig Bayarchimeg、Okuyama Katsushi、Yamamoto Hiroko、Naito Katsuaki、Hayashi Mikako、Sano Hidehiko、Sidhu Sharanbir K.、Saito Takashi
    • Journal Title

      Journal of Functional Biomaterials

      Volume: 13 Issue: 4 Pages: 246-246

    • DOI

      10.3390/jfb13040246

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Potential of Fluoride-Containing Zinc Oxide and Copper Oxide Nanocomposites on Dentin Bonding Ability2022

    • Author(s)
      Bayarchimeg Altankhishig, Yasuhiro Matsuda, Futami Nagano-Takebe, Katsushi Okuyama, Hiroko Yamamoto, Masahiko Sakurai, Katsuaki Naito, Mikako Hayashi, Hidehiko Sano, Sharanbir K. Sidhu, Takashi Saito
    • Journal Title

      Nanomaterials

      Volume: 12 Issue: 8 Pages: 1291-1291

    • DOI

      10.3390/nano12081291

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Improvement of acid resistance of Zn-doped dentin by newly generated chemical bonds2022

    • Author(s)
      Naito K, Kuwahara Y, Yamamoto H, Matsuda Y, Okuyama K, Ishimoto T, Nakano T, Yamashita H, Hayashi M*
    • Journal Title

      Materials and Design

      Volume: 2015 Pages: 110412-110412

    • DOI

      10.1016/j.matdes.2022.110412

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] In-air micro-proton-induced X-ray/gamma-ray emission analysis of the acid resistance of root dentin after applying fluoride-containing materials incorporating calcium2021

    • Author(s)
      YAGI Kyoko、UEMURA Reo、YAMAMOTO Hiroko、ISHIMOTO Takuya、NAITO Katsuaki、ITOH Shousaku、MATSUDA Yasuhiro、OKUYAMA Katsushi、NAKANO Takayoshi、HAYASHI Mikako
    • Journal Title

      Dental Materials Journal

      Volume: 40 Issue: 5 Pages: 1142-1150

    • DOI

      10.4012/dmj.2020-273

    • NAID

      130008093772

    • ISSN
      0287-4547, 1881-1361
    • Year and Date
      2021-09-25
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of advanced glycation end products on dental pulp calcification2021

    • Author(s)
      Sugiyama Keita、Miura Jiro、Shimizu Masato、Takashima Aoi、Matsuda Yusuke、Kayashima Hiroki、Okamoto Motoki、Nagashima Tadashi、Araki Tsutomu
    • Journal Title

      Oral Diseases

      Volume: - Issue: 3 Pages: 1-11

    • DOI

      10.1111/odi.13792

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Partial Pulpotomy to Successfully Treat a Caries-Induced Pulpal Micro-Abscess: A Case Report2021

    • Author(s)
      Okamoto M, Duncan HF, Takahashi Y, Kuriki N, Matsumoto S, Hayashi M
    • Journal Title

      Frontier in Dental Medicine

      Volume: 2 Pages: 678632-678632

    • DOI

      10.3389/fdmed.2021.678632

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Fabricated CAD/CAM Post-Core Using Glass Fiber-Reinforced Resin Shows Innovative Potential in Restoring Pulpless Teeth2021

    • Author(s)
      Suzaki N, Yamaguchi S, Nambu E, Tanaka R, Imazato S, Hayashi M
    • Journal Title

      Materials

      Volume: 14 Issue: 20 Pages: 6199-6199

    • DOI

      10.3390/ma14206199

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Lithium-containing S-PRG fillers promoted the wound healing process of pulp tissues through activation of Wnt/β-catenin signaling pathway.2021

    • Author(s)
      Ali M, Okamoto M, Komichi S, Watanabe M, Huang H, Takahashi Y, Hayashi M
    • Journal Title

      大阪大学歯学会雑誌

      Volume: 65 Pages: 15-22

    • NAID

      120007177079

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Performance of a Biodegradable Composite with Hydroxyapatite as a Scaffold in Pulp Tissue Repair2020

    • Author(s)
      Motoki Okamoto, Sayako Matsumoto, Ayato Sugiyama ,Kei Kanie ,Masakatsu Watanabe, Hailing Huang, Manahil Ali, Yuki Ito, Jiro Miura, Yujiro Hirose, Koichiro Uto, Mitsuhiro Ebara, Ryuji Kato, Aika Yamawaki-Ogata, Yuji Narita, Shigetada Kawabata, Yusuke Takahashi and Mikako Hayashi
    • Journal Title

      polymers

      Volume: 12 Issue: 4 Pages: 937-937

    • DOI

      10.3390/polym12040937

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Assessment of the functional efficacy of root canal treatment with high-frequency waves in rats.2020

    • Author(s)
      Matsui S, Yoneda N, Maezono H, Kuremoto K, Ishimoto T, Nakano T, Yumoto H, Ebisu S, Noiri Y, Hayashi M.
    • Journal Title

      PLoS One.

      Volume: 15 Issue: 9 Pages: 987-996

    • DOI

      10.1371/journal.pone.0239660

    • NAID

      120007188421

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evidence-based consensus for treating incipient enamel caries in adults by non-invasive methods: recommendations by GRADE guideline2020

    • Author(s)
      Hayashi M, Momoi Y, Fujitani M, MasayoshiFukushima M, Imazato S, Kitasako Y, Kubo S, Nakashima S, Nikaido T, Shimizu A, Sugai K, Takahashi R, Unemori M, Yamaki C.
    • Journal Title

      Japanese Dental Science Review

      Volume: 56 Issue: 1 Pages: 155-163

    • DOI

      10.1016/j.jdsr.2020.09.005

    • NAID

      50014686622

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Chemical analysis of an apical hard tissue formed by apexification in a permanent tooth: Toward elucidation of the mechanism of the apical biomineralization2023

    • Author(s)
      NAITO K, OKAMOTO M, KINOMOTO Y, HAYASHI M
    • Organizer
      21st ESE Biennial Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The antimicrobial effect of peroxynitric acid on polymicrobial biofilms2023

    • Author(s)
      MAEZONO Hazuki, SHIMAOKA Tsuyoshi, ONO Shunka, TAKAHASHI Yusuke, ASAHI Yoko, KITANO Katsuhisa, IKAWA Satoshi, HAYASHI Mikako
    • Organizer
      21st ESE Biennial Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of an in vivo carious restoration model using multimodal imaging2023

    • Author(s)
      KANDA Hikaru, NAITO Katsuaki, YAMAMOTO Hiroko, MATSUDA Yasuhiro, OKUYAMA Katsushi, HAYASHI Mikako
    • Organizer
      102nd International Association for Dental Research General Session
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fluoride-ion Diffusion in Dentin Clarified by Multiscale/Multiphysics Analysis2023

    • Author(s)
      Katsuaki Naito, Hikaru KANDA, Hiroko Yamamoto, Yasuhiro Matsuda, Katsushi Okuyama, Mikako Hayashi
    • Organizer
      102nd International Association for Dental Research General Session
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 「削らないう」蝕治療の基盤をつくる2023

    • Author(s)
      林美加子
    • Organizer
      第71回日本口腔衛生学会学術大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] in vivo う蝕修復モデルを用いてう蝕象牙質の多面的評価2023

    • Author(s)
      神田ひかる、内藤克昭、山本洋子、松田康裕、奥山克史、林 美加子
    • Organizer
      第159回日本歯科保存学会秋季学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 象牙質に浸透したイオンの局在とMMP阻害作用との関係性の可視化2023

    • Author(s)
      内藤 克昭, 島岡 毅, 神田 ひかる, 林 美加子
    • Organizer
      第158回 歯科保存学会2023年度春季学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 初期活動性根面う蝕患者におけるケアダインZIF-Cのバイオフィルム抑制効果に関する臨床評価2023

    • Author(s)
      朝日陽子、内藤克昭、神田ひかる、庭野和明、武川大輔、湯本浩通、野杁由一郎、林美加子
    • Organizer
      第159回日本歯科保存学会秋季学術大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] How best to treat root caries in the elderly: promising new approaches focused on dentin collagen and ion dynamics2022

    • Author(s)
      Hayashi M
    • Organizer
      International Dental Materials Congress 202
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Evaluation of MTA-containing resin-based pulp capping materials in animal model.2022

    • Author(s)
      Matsumoto S, Okamoto M, Huang H, Moriyama K, Watanabe M, Takahashi Y, Hayashi M
    • Organizer
      100th General Session & Exhibition of the IADR
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Inhibition of MMPs activities by Zn in human dentin proved by in situ zymography.2022

    • Author(s)
      Naito K , Shimaoka T, Kanda H , Hayashi M
    • Organizer
      International Dental Materials Congress 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フッ化物イオンの拡散過程解明に向けたマルチフィジックス解析モデルの構築2022

    • Author(s)
      内藤 克昭,山本 洋子, 松田 康裕, 奥山 克史, 林 美加子
    • Organizer
      第157回日本歯科保存学会2022年度秋季学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 究極の歯髄保存:ここからの展望2022

    • Author(s)
      林 美加子
    • Organizer
      第157回日本歯科保存学会2022年度秋季学術大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] ラットう蝕由来歯髄炎モデルを用いたleptinの局在評価2022

    • Author(s)
      森山 輝一, 岡本 基岐, 松本 紗也子, 渡邉 昌克, 黄 海玲,, 高橋 雄介, 林 美加子
    • Organizer
      第156回日本歯科保存学会2022年度春季学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 超高磁場MRIを用いたう蝕の進行に伴う可逆性・不可逆性歯髄炎の新規診断法の確立2022

    • Author(s)
      森山 輝一, 岡本 基岐 松本 紗也子, 渡邉 昌克, 黄 海玲, 中谷 公貴, 高橋 雄介, 林 美加子
    • Organizer
      第157回日本歯科保存学会2022年度秋季学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Evaluation of inflammatory changes during wound healing process in caries-stimulated dental pulp2021

    • Author(s)
      Huang H, Okamoto M, Watanabe M, Matsumoto S, Moriyama K, Komichi S, Takahashi Y, Hayashi M
    • Organizer
      第69回 国際歯科研究学会日本部会総会・学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 水酸化カルシウム系根管貼薬剤が根尖歯周組織の創傷治癒に与える影響2021

    • Author(s)
      森山輝一、岡本基岐、松本紗也子、渡邉昌克、黄 海玲、高橋雄介、林 美加子
    • Organizer
      第154回歯科保存学会2021年度春季学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] X線ビームを用いた象牙質に導入した亜鉛の結合状態解析2021

    • Author(s)
      内藤克昭,山本洋子,林 美加子
    • Organizer
      第154回歯科保存学会2021年度春季学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 新規駆動形式モーターを用いた根管形成能の評価2021

    • Author(s)
      岡本基岐、松本紗也子、森山輝一、渡邉昌克、黄海玲、三浦治郎、杉山敬多、米田直道、的場一成、高橋雄介、林 美加子
    • Organizer
      第154回歯科保存学会2021年度春季学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Dynamics of Ions Artificially Introduced into Caries-affected Dentin2020

    • Author(s)
      Naito K, Yamamoto H, Matsuda Y, Okuyama K, Hayashi M
    • Organizer
      第68回国際歯科研究学会日本部会(JADR)総会・学術大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Interaction analysis of protein S100A7 in dental pulp tissue2020

    • Author(s)
      Watanabe M, Okamoto M, Hailing H, Matsumoto S, Moriyama K, Takahashi Y, Hayashi M.
    • Organizer
      第68回国際歯科研究学会日本部会(JADR)総会・学術大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] リン酸三カルシウム配合フッ化物バーニッシュによる根面象牙質の脱灰抑制効果2020

    • Author(s)
      上村怜央, 山本洋子, 須崎尚子, 内藤克昭, 天羽萌, 神田ひかる, 林美加子
    • Organizer
      第153回日本歯科保存学会
    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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