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青色可視光励起型低濃度過酸化水素ラジカル殺菌技術を応用した次世代義歯洗浄器開発

Research Project

Project/Area Number 22592141
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

菅野 太郎  東北大学, 大学院・歯学研究科, 助教 (30302160)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsラジカル殺菌 / 過酸化水素 / ヒドロキシルラジカル / 義歯洗浄器 / 可視光LED / ラジカル殺菌技術 / 低濃度過酸化水素 / 温度
Research Abstract

われわれはこれまで、日常臨床で用いられるオキシドール(1M;3%)よりも低濃度の過酸化水素に、可視光領域の波長(405nm)のLEDを照射することで、効率的にヒドロキシルラジカル(HO・)を発生させ殺菌を行うという新しい義歯洗浄器を試作し検討を行ってきた.
義歯をこの洗浄器で洗浄する際、HO・は強力な酸化剤であるため、金属や床用レジンといった歯科材料を腐食させるという懸念がある。本年度は、過酸化水素の光分解によって生じるHO・が歯科用金属に及ぼす腐食作用を評価した。金属試料は、12%金銀パラジウム合金、チタン、コバルトクロム合金、ステンレス鋼を用いた。放射照度115mW/cm^2のLEDを光源とし、過酸化水素濃度は1Mとし、金属試料を37℃条件下1週間浸漬し、ICP(誘導結合プラズマ発光分光分析)装置を用いて各元素の溶出イオン量を計測した。その結果、どの歯科用金属においても、1M過酸化水素の光分解によるHO・生成系の腐食作用は、光を照射しない過酸化水素に1週間浸漬した場合よりも低いという結果が得られた。すなわち、本殺菌法を義歯洗浄に応用することの歯科用金属に対する安全性は示された。
また、今回、義歯洗浄器自体の改良も行った。義歯を浴槽に入れて洗浄する場合、洗浄液や浴槽も汚染される可能性が高い。したがって、以前試作した放射照度110mW/cm^2のLEDを搭載した洗浄器の改良を行った。浴槽の大きさを大きくし、上下の義歯を同時に洗浄できるようにした。義歯は過酸化水素が入ったプラスチックパックに入れて洗浄し、汚染した洗浄液が浴槽につかない設計とした。

Report

(2 results)
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (34 results)

All 2012 2011 2010

All Journal Article (13 results) (of which Peer Reviewed: 13 results) Presentation (17 results) Book (4 results)

  • [Journal Article] Literature review of the role of hydroxyl radical in chemically-induced mutagenicity and carcinogenicity for the risk assessment of disinfection system utilizing photolysis of hydrogen peroxide2012

    • Author(s)
      Kanno T, Nakamura K, Ikai H, Kikuchi K, Sasaki K, Niwano Y
    • Journal Title

      J Clin Biochem Nutr

      Volume: (未定)(印刷中)

    • NAID

      130004879280

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel Denture Cleaning System Based on Hydroxyl Radical Disinfection2012

    • Author(s)
      Kanno T, Nakamura K, Ikai H, Hayashi E, Shirato M, Mokudai T, Iwasawa A, Kohno M, Niwano Y, Sasaki K
    • Journal Title

      Int J Prosthodont

      Volume: (未定)(印刷中)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Determination of Reactive Oxygen Species Generated by Phorbol 12-Myristate 13-Acetate-Stimulated Oral Polymorphonuclear Cells from Healthy2012

    • Author(s)
      Yaekashiwa N, Sato E, Nakamura K, Iwasawa A, Kudo, A, Kanno T, Kohno M, Niwano Y
    • Journal Title

      Arch Oral Biol

      Volume: (未定)(印刷中)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In vitro and in vivo anti-Staphylococcus aureus activities of a new disinfection system utilizing photolysis of hydrogen peroxide2012

    • Author(s)
      Hayashi E, Mokudai T, Yamada Y, Nakamura K, Kanno T, Sasaki K, Niwano Y
    • Journal Title

      J Biosci Bioeng

      Volume: (未定)(印刷中)

    • NAID

      110009495428

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microbial resistance in relation to catalase activity to oxidative stress induced by photolysis of H_2O_22012

    • Author(s)
      Nakamura K, Kanno T, Mokudai T, Iwasawa A, Niwano Y, Kohno M
    • Journal Title

      Microbiol Immunol

      Volume: 56 Pages: 48-55

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Topical treatment of oral cavity wounded skin with a new disinfection system utilizing photolysis of hydrogen peroxide in rats2012

    • Author(s)
      Yamada Y, Mokudai T, Nakamura K, Hayashi E, Kawana Y, Kanno T, Sasaki K, Niwano Y
    • Journal Title

      J Toxicol Sci

      Volume: 37 Pages: 329-335

    • NAID

      10030126757

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synergistic Effect of Thermal Energy on Bactericidal Action of Photolysis of H_2O_2 in Relation to Acceleration of Hydroxyl Radical Generation2012

    • Author(s)
      Shirato M, Ikai H, Nakamura K, Hayashi E, Kanno T, Sasaki K, Kohno M, Niwano Y
    • Journal Title

      Antimicrob Agents Chemother

      Volume: 56 Issue: 1 Pages: 295-301

    • DOI

      10.1128/aac.05158-11

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reevaluation of analytical methods for photogenerated singlet oxygen2011

    • Author(s)
      Nakamura K, Ishiyama K, Ikai H, Kanno T, Sasaki K, Niwano Y, Kohno M
    • Journal Title

      Journal of Clinical Biochemistry and Nutrition

      Volume: 49 Issue: 2 Pages: 87-95

    • DOI

      10.3164/jcbn.10-125

    • NAID

      130004466651

    • ISSN
      0912-0009, 1880-5086
    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photolysis of hydrogen peroxide, an effective disinfection system via hydroxyl radical formation2010

    • Author(s)
      Ikai H, Nakamura K, Shirato M, Kanno T, Iwasawa A, Sasaki K, Niwano Y, Kohno M
    • Journal Title

      Antimicrob Agents Chemother

      Volume: 54 Pages: 5086-5091

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reevaluation of quantitative ESR spin trapping analysis of hydroxyl radical by applying sonolysis of water as a model system2010

    • Author(s)
      Nakamura K, Kanno T, Ikai H, Sato E, Mokudai T, Niwano Y, Ozawa T, Kohno M
    • Journal Title

      Bull Chem Soc Jpn

      Volume: 83 Pages: 1037-1046

    • NAID

      10026698287

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A novel analytical method to evaluate directly catalase activity of microorganisms and mammalian cells by ESR oximetry2010

    • Author(s)
      Nakamura K, Kanno T, Mokudai T, Iwasawa A, Niwano Y, Kohno M
    • Journal Title

      Free Radical Res

      Volume: 44 Pages: 1036-1043

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Zirconia as a dental implant abutment material : A systematic review2010

    • Author(s)
      Nakamura K, Kanno T, Milleding P, Ortengren U
    • Journal Title

      Int J Prosthodontics

      Volume: 23 Pages: 299-309

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A retrospective study of fixed dental prostheses without regular maintenance2010

    • Author(s)
      Ikai H, Kanno T, Kimura K, Sasaki K
    • Journal Title

      J Prosthodont Res

      Volume: 54 Pages: 173-178

    • NAID

      130004679534

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Bactericidal effect of hydroxyl radical generated by photolysis of hydrogen peroxide2011

    • Author(s)
      Ikai H, Nakamura K, Shirato M, Kanno T, Iwasawa A, Sasaki K, Niwano Y, Kohno M
    • Organizer
      Interface Oral Health Science 2011
    • Place of Presentation
      仙台
    • Year and Date
      2011-03-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] Influence of hydroxyl radical generated by photolysis of H2O2 on corrosion behavior of dental metals2011

    • Author(s)
      Yamada Y, Nakamura K, Takada Y, Mokudai T, Ikai H, Inagaki R, Kanno T, Sasaki K, Niwano Y, Kohno M
    • Organizer
      Interface Oral Health Science 2011
    • Place of Presentation
      仙台
    • Year and Date
      2011-03-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] Reevaluation of analytical methods for photogenerated singlet oxygen2011

    • Author(s)
      Ishiyama K, Nakamura K, Ikai H, Kanno T, Sasaki K, Niwano Y, Kohno M
    • Organizer
      Interface Oral Health Science 2011
    • Place of Presentation
      仙台
    • Year and Date
      2011-03-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] Booster effect of thermal energy on bactericidal action of hydroxyl radical generated by photolysis of H_2O_22011

    • Author(s)
      Shirato M, Ikai H, Nakamura K, Kanno T, Sasaki K, Niwano Y, Kohno M
    • Organizer
      Interface Oral Health Science 2011
    • Place of Presentation
      仙台
    • Year and Date
      2011-03-08
    • Related Report
      2010 Annual Research Report
  • [Presentation] ヒドロキシルラジカルが骨治癒に及ぼす影響2011

    • Author(s)
      菅野太郎, Luiz Meirelles, 中村圭祐, 猪飼紘代, Johansson Carina, Stig Karlsson, 佐々木啓一, 河野雅弘, 庭野吉己
    • Organizer
      第64回日本酸化ストレス学会学術集会
    • Place of Presentation
      ルスツ(北海道)
    • Related Report
      2011 Annual Research Report
  • [Presentation] 過酸化水素光分解殺菌法における微生物の反応動態解析2011

    • Author(s)
      林栄成, 中村圭祐, 菅野太郎, 目代貴之, 岩沢篤郎, 河野雅弘, 庭野吉己
    • Organizer
      第64回日本酸化ストレス学会学術集会
    • Place of Presentation
      ルスツ(北海道)
    • Related Report
      2011 Annual Research Report
  • [Presentation] 過酸化水素光分解により生じるヒドロキシルラジカルの細胞毒性評価2011

    • Author(s)
      猪飼紘代, 中村圭祐, 菅野太郎, 佐々木啓一, 河野雅弘, 庭野吉己
    • Organizer
      第64回日本酸化ストレス学会学術集会
    • Place of Presentation
      ルスツ(北海道)
    • Related Report
      2011 Annual Research Report
  • [Presentation] プロアントシアニジン光照射による新しい殺菌技術2011

    • Author(s)
      白土翠, 中村圭祐, 猪飼紘代, 菅野太郎, 佐々木啓一, 庭野吉己, 河野雅弘
    • Organizer
      第64回日本酸化ストレス学会学術集会
    • Place of Presentation
      ルスツ(北海道)
    • Related Report
      2011 Annual Research Report
  • [Presentation] プロアントシアニジンの光照射により生成される活性酸素種の解析2011

    • Author(s)
      中村圭祐, 白土翠, 猪飼紘代, 菅野太郎, 佐々木啓一, 河野雅弘, 庭野吉己
    • Organizer
      第64回日本酸化ストレス学会学術集会
    • Place of Presentation
      ルスツ(北海道)
    • Related Report
      2011 Annual Research Report
  • [Presentation] ヒドロキシルラジカルが歯科用金属の耐食性に及ぼす影響2011

    • Author(s)
      山田康友, 中村圭祐, 高田雄京, 目代貴之, 猪飼紘代, 稲垣亮一, 菅野太郎, 佐々木啓一, 庭野吉己, 河野雅弘
    • Organizer
      第64回日本酸化ストレス学会学術集会
    • Place of Presentation
      ルスツ(北海道)
    • Related Report
      2011 Annual Research Report
  • [Presentation] ラジカル殺菌技術の歯科応用2010

    • Author(s)
      菅野太郎
    • Organizer
      第25回日本酸化ストレス学会関東支部学術大会
    • Place of Presentation
      東京
    • Year and Date
      2010-12-11
    • Related Report
      2010 Annual Research Report
  • [Presentation] 過酸化水素光分解殺菌法における殺菌効果増強因子の検討2010

    • Author(s)
      白土翠, 猪飼紘代, 中村圭祐, 菅野太郎, 佐々木啓一, 庭野吉己, 河野雅弘
    • Organizer
      第25回日本酸化ストレス学会関東支部学術大会
    • Place of Presentation
      東京
    • Year and Date
      2010-12-11
    • Related Report
      2010 Annual Research Report
  • [Presentation] 光線力学殺菌療法における一重項酸素生成量評価法の検討2010

    • Author(s)
      石山希里香, 中村圭祐, 猪飼紘代, 菅野太郎, 佐々木啓一, 庭野吉己, 河野雅弘
    • Organizer
      第25回日本酸化ストレス学会関東支部学術大会
    • Place of Presentation
      東京
    • Year and Date
      2010-12-11
    • Related Report
      2010 Annual Research Report
  • [Presentation] 過酸化水素光分解から生じたヒドロキシルラジカル殺菌効果2010

    • Author(s)
      猪飼紘代、中村圭祐、白土翠、菅野太郎、庭野吉己、河野雅弘
    • Organizer
      第63回日本酸化ストレス学会学術集会
    • Place of Presentation
      横浜
    • Related Report
      2010 Annual Research Report
  • [Presentation] ESRオキシメトリー法を応用した微生物および動物細胞の新しいカタラーゼ活性測定法2010

    • Author(s)
      中村圭祐, 菅野太郎, 目代貴之, 岩沢篤郎, 庭野吉己, 河野雅弘
    • Organizer
      第63回日本酸化ストレス学会学術集会
    • Place of Presentation
      横浜
    • Related Report
      2010 Annual Research Report
  • [Presentation] ESRスピントラップ法を用いたラジカル定量の潜在的問題点2010

    • Author(s)
      佐藤恵美子, 中村圭祐, 菅野太郎, 猪飼紘代, 目代貴之, 庭野吉己, 河野雅弘
    • Organizer
      第63回日本酸化ストレス学会学術集会
    • Place of Presentation
      横浜
    • Related Report
      2010 Annual Research Report
  • [Presentation] 過酸化水素の光分解によるHO・生成反応の活性化2010

    • Author(s)
      白土翠, 中村圭祐, 猪飼紘代, 菅野太郎, 佐々木啓一, 庭野吉己, 河野雅弘
    • Organizer
      第63回日本酸化ストレス学会学術集会
    • Place of Presentation
      横浜
    • Related Report
      2010 Annual Research Report
  • [Book] Interface Oral Health Science 2011 (Bactericidal effect of hydroxyl radical generated by photolysis of hydrogen peroxide)2012

    • Author(s)
      Ikai H, Nakamura K, Shirato M, Kanno T, Iwasawa A, Sasaki K, Niwano Y, Kohno M
    • Publisher
      Springer
    • Related Report
      2011 Annual Research Report
  • [Book] Interface Oral Health Science 2011 (Booster effect of thermal energy on bactericidal action of hydroxyl radical generated by photolysis of H_2O_2)2012

    • Author(s)
      Shirato M, Ikai H, Nakamura K, Kanno T, Sasaki K, Niwano Y, Kohno M
    • Publisher
      Springer
    • Related Report
      2011 Annual Research Report
  • [Book] Interface Oral Health Science 2011 (Reevaluation of analytical methods for photogenerated singlet oxygen)2012

    • Author(s)
      Ishiyama K, Nakamura K, Ikai H, Kanno T, Sasaki K, Niwano Y, Kohno M
    • Publisher
      Springer
    • Related Report
      2011 Annual Research Report
  • [Book] Interface Oral Health Science 2011 (Influence of hydroxyl radical generated by photolysis of H_2O_2 on corrosion behavior of dental metals)2012

    • Author(s)
      Yamada Y, Nakamura K, Takada Y, Mokudai T, Ikai H, Inagaki R, Kanno T, Sasaki K, Niwano Y, Kohno M
    • Publisher
      Springer
    • Related Report
      2011 Annual Research Report

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Published: 2010-08-23   Modified: 2016-04-21  

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