Study of wound healing and infection control by High-frequency of ultrasonic water flow
Project/Area Number |
17K01422
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Medical systems
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Research Institution | Showa University |
Principal Investigator |
|
Project Period (FY) |
2017-04-01 – 2020-03-31
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Project Status |
Completed (Fiscal Year 2019)
|
Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | 超音波 / バイオフィルム / 感染 / 創傷 / 集束型超音波 / 音圧 / 低侵襲治療システム |
Outline of Final Research Achievements |
In this study, we evaluated the effect of wound healing and postoperative wound surface infection control using by High-frequency of ultrasonic water flow. As a result, the cleaning effect increased depending on the applied power and the action time. Moreover, biofilm removal was confirmed depending on the applied power.In the sample biofilm-specific waveform was observed by FT-IR. The effects on cytotoxic LDH level, cell viability and inflammatory cytokines were evaluated using a gingival epithelial cell line. As a result, the production of IL-8 was increased by laser, but decreased by the combined use of ultrasonic waves. Moreover, the production of VEGF was increased by the combined use of ultrasound.
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Academic Significance and Societal Importance of the Research Achievements |
インプラントは多孔質化などの改良が進み、口腔に露出すると微生物が表面の孔窩に入り込み、菌体除去は困難となる。そこで超音波を用いた医療機器を検討している。超音波の利点は、薬剤を用いないで殺菌するなどがある。しかし超音波を作用させるには水槽が必要となり、歯科の現場で口腔内に適量な水槽を維持することは容易ではない。そこで我々は流水に超音波エネルギーを印加することで、水分子が振動し、その振幅作用により汚れを落とすことを可能とした。これはチタン表面上の細菌を非接触で除去が可能で、インプラントの除染が可能なことを証明した。近年は本技術を用いた創傷治癒と感染コントロールへの効果を検討している。
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Report
(4 results)
Research Products
(2 results)