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Study on bactericidal effects by laser beam irradiation in the suspension with inorganic powder

Research Project

Project/Area Number 23792169
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Conservative dentistry
Research InstitutionKanazawa University

Principal Investigator

FURUMOTO Tatsuaki  金沢大学, 機械工学系, 准教授 (60432134)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsレーザー / レーザー誘起衝撃応力 / 一次元弾性応力波理論 / 温度測定 / 赤外線輻射温度計 / 殺菌効果 / 酸化チタン粉末 / Nd:YAGレーザー / Er:YAGレーザー / レーザ誘起衝撃応力 / 二酸化チタン粉末
Research Abstract

In this study, the dynamic stress generated in the suspension with inorganic powder induced by laser beam irradiation was measured, and the phenomenon of the laser beam irradiation in the water environment was observed with a high speed video camera. In addition, the surface temperature on the enamel surface of the human tooth during cavity preparation by the irradiation of YAG laser beam was measured by the three-color pyrometer with an optical fiber. Moreover, the bactericidal effects by the YAG laser irradiation under the presence of inorganic powder were investigated morphologically, then the samples were observed by the SEM.
Regarding the bactericidal effects by laser beam irradiation, there was a significant reduction such as 90 - 99.9% of viable cells. SEM investigations revealed the morphological damage according to pulse energies and exposure times. The bactericidal action occurred by the dynamic stress and the temperature rise induced by the laser beam irradiation

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (25 results)

All 2014 2013 2012 2011

All Journal Article (8 results) (of which Peer Reviewed: 8 results) Presentation (16 results) (of which Invited: 1 results) Book (1 results)

  • [Journal Article] The temperature measurement of human enamel surface during CO2 laser beam irradiation2014

    • Author(s)
      S. Henmi, T. Furumoto, A. Hosokawa, T. Koyano and T. Ueda
    • Journal Title

      Proceedings of ICPE2014

      Volume: -

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Study on Measurement of Laser Induced Dynamic Stress in the Suspension, The Influences of Powder Materials on Induced Dynamic Stress2013

    • Author(s)
      T. Furumoto, other 4 authors
    • Journal Title

      Procedia CIRP

      Volume: Vol.5 Pages: 74-78

    • DOI

      10.1016/j.procir.2013.01.015

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Formation of re-solidified layer on the surface of dental hard tissue by Er:YAG laser irradiation2013

    • Author(s)
      T. Hayashi, T. Furumoto, T. Ueda and A. Hosokawa
    • Journal Title

      Proceedings of LEM21

      Volume: - Pages: 63-66

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Study on Measurement of Laser Induced Dynamic Stress in the Suspension, The Influences of Powder Materials on Induced Dynamic Stress2013

    • Author(s)
      Shingo Henmi, Tatsuaki Furumoto, Takahi Ueda, Akira Hosokawa and Takashi Yamauchi
    • Journal Title

      Procedia CIRP

      Volume: 5 Pages: 74-78

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Removal Characteristics of Dental Tissue with Er:YAG Laser Irradiation (Effect of Laser Induced Bubble on Cavity Preparation)2012

    • Author(s)
      古本達明, 他5名
    • Journal Title

      TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C

      Volume: 78 Issue: 794 Pages: 3594-3604

    • DOI

      10.1299/kikaic.78.3594

    • NAID

      130002051596

    • ISSN
      0387-5024, 1884-8354
    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Er:YAGレーザによる歯質の除去特性,注水による気泡の発現と効果2012

    • Author(s)
      古本達明,中谷馨,林鉄也,上田隆司,細川 晃,田中隆太郎
    • Journal Title

      日本機械学会論文集(C編)

      Volume: 78, 794 Pages: 3594-3604

    • NAID

      130002051596

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Combined Effect of Nd:YAG Laser and TiO2 on Bactericidal Action (2nd report)2011

    • Author(s)
      古本達明, 他3名
    • Journal Title

      Journal of Japanese Society for Laser Dentistry

      Volume: 22 Issue: 2/3 Pages: 77-84

    • DOI

      10.5984/jjpnsoclaserdent.22.77

    • NAID

      130004565014

    • ISSN
      0917-7450, 2185-6702
    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Surface Temperature during Cavity Preparation on Human Tooth by Er : YAG Laser Irradiation, CIRP Annals2011

    • Author(s)
      T. Furumoto, other 3 authors
    • Journal Title

      Manufacturing Technology

      Volume: Vol.60, No.1 Issue: 1 Pages: 555-558

    • DOI

      10.1016/j.cirp.2011.03.065

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Presentation] レーザを用いた歯科治療に関する研究,異種レーザを用いた酸化チタン塗布歯面の溶融層形成2014

    • Author(s)
      西出晃大,古本達明,上田隆司,細川晃,小谷野智広,林鉄也
    • Organizer
      第43回学生員卒業研究発表講演会
    • Place of Presentation
      富山大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] レーザ照射による歯質除去時の温度測定と除去形態の関係2013

    • Author(s)
      辺見慎吾,古本達明,細川晃,小谷野智広,上田隆司
    • Organizer
      第56回自動制御連合講演会
    • Place of Presentation
      新潟大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] CO2レーザ照射時の歯質表面温度特性,象牙質表面温度が炭化に及ぼす影響2013

    • Author(s)
      辺見慎吾,古本達明,細川晃,小谷野智広,上田隆司
    • Organizer
      2013年度精密工学会北陸信越支部学術講演会
    • Place of Presentation
      福井大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] Study on Measurement of Laser Induced Dynamic Stress in the Suspension, The Influences of Powder Materials on Induced Dynamic Stress2013

    • Author(s)
      Shingo Henmi, Tatsuaki Furumoto, Takahi Ueda, Akira Hosokawa and Takashi Yamauchi
    • Organizer
      CIRP BioManufacturing 2013
    • Place of Presentation
      東京大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 歯科分野におけるレーザ利用の現状2013

    • Author(s)
      古本達明
    • Organizer
      精密工学会2013年度春季大会学術講演会
    • Place of Presentation
      東京工業大学
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] レーザー照射に起因した殺菌効果発現のメカニズム解明に関する研究,Nd : YAGレーザー照射時の誘起衝撃応力測定2012

    • Author(s)
      山内隆志,古本達明,上田隆司,細川晃
    • Organizer
      日本機械学会2012年度年次大会
    • Place of Presentation
      金沢大学
    • Year and Date
      2012-09-12
    • Related Report
      2013 Final Research Report
  • [Presentation] Er:YAGレーザを用いた水中における材料除去特性,高速度カメラによるレーザ照射に起因した気泡の観察2012

    • Author(s)
      林鉄也,古本達明,上田隆司,細川晃
    • Organizer
      砥粒加工学会北陸信越地区部会 2012年度研究・開発成果発表会
    • Place of Presentation
      金沢工業大学
    • Related Report
      2012 Research-status Report
  • [Presentation] レーザ照射に起因した殺菌効果発現のメカニズム解明に関する研究,Nd:YAGレーザ照射時の誘起衝撃応力測定2012

    • Author(s)
      山内隆志,古本達明,上田隆司,細川晃
    • Organizer
      日本機械学会 2012年度年次大会
    • Place of Presentation
      金沢大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Er:YAGレーザによる歯科材料の除去特性,水中照射時の高速度ビデオカメラ観察2012

    • Author(s)
      林鉄也,古本達明,上田隆司,細川晃
    • Organizer
      日本機械学会 第9回生産加工・工作機械部門講演会
    • Place of Presentation
      秋田県立大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Er:YAGレーザを用いた歯科治療に関する研究,水の有無による歯質除去機構の比較2012

    • Author(s)
      林 鉄也,古本達明,上田隆司,細川晃,田中隆太郎,中谷馨
    • Organizer
      第41回学生員卒業研究発表講演会
    • Place of Presentation
      金沢工業大学,石川県
    • Related Report
      2011 Research-status Report
  • [Presentation] レーザー照射による歯質除去時の温度測定と除去形態の関係2011

    • Author(s)
      辺見慎吾,古本達明,細川晃,小谷野智広,上田隆司
    • Organizer
      第56回自動制御連合講演会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-11-17
    • Related Report
      2013 Final Research Report
  • [Presentation] Study on Temperature Measurement during Er : YAG Laser Irradiation with Two-color Pyrometer2011

    • Author(s)
      T. Furumoto, K. Nakatani, T. Ueda, A. Hosokawa and R. Tanaka
    • Organizer
      World Federation of Laser Dentistry European Division 2011
    • Place of Presentation
      Sapienza University of Roma
    • Year and Date
      2011-06-10
    • Related Report
      2013 Final Research Report
  • [Presentation] Combined Effect of Nd : YAG Laser and TiO_2 on Bactericidal Action2011

    • Author(s)
      M. Waga, T. Furumoto and T. Ueda
    • Organizer
      World Federation of Laser Dentistry European Division 2011
    • Place of Presentation
      Sapienza University of Roma
    • Year and Date
      2011-06-10
    • Related Report
      2013 Final Research Report
  • [Presentation] Study on temperature measurement during Er:YAG laser irradiation with two-color pyrometer2011

    • Author(s)
      Tatsuaki Furumoto, Kaoru Nakatani, Takashi, Ueda, Akira Hosokawa, Ryutaro Tanaka
    • Organizer
      World Federation of Laser Dentistry European Division 2011
    • Place of Presentation
      Sapienza University of Roma, Italy
    • Related Report
      2011 Research-status Report
  • [Presentation] Combined Effect of Nd:YAG laser and TiO₂ on Bactericidal Action2011

    • Author(s)
      Masaaki Waga, Tatsuaki Furumoto, Takashi Ueda
    • Organizer
      World Federation of Laser Dentistry European Division 2011
    • Place of Presentation
      Sapienza University of Roma, Italy
    • Related Report
      2011 Research-status Report
  • [Presentation] Study on Temperature Measurement of Human Enamel by Er:YAG Laser Irradiation-The Influence of Surface Temperature on the Dental Pulp2011

    • Author(s)
      Kaoru Nakatani, Tatsuaki Furumoto, Takashi Ueda, Akira Hosokawa and Ryutaro Tanaka
    • Organizer
      International Conference on Leading Edge Manufacturing in 21st Century 2011
    • Place of Presentation
      Omiya Sonic City, Japan
    • Related Report
      2011 Research-status Report
  • [Book] 金沢大学ベンチャー・ビジネス・ラボラトリー年報20122013

    • Author(s)
      古本達明
    • Publisher
      金沢大学先端科学・イノベーション推進機構
    • Related Report
      2013 Annual Research Report 2013 Final Research Report

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Published: 2011-08-05   Modified: 2019-07-29  

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