| Project/Area Number |
21592544
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Surgical dentistry
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| Research Institution | Matsumoto Dental University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ISHIHAMA Kohji 大阪大学, 歯学部附属病院, 講師 (30432454)
OKAYAMA Masaki 松本歯科大学, 歯学部, 助手 (90549370)
FURUSAWA Kiyofumi 松本歯科大学, 研究所, 准教授 (90165481)
YASUDA Kouichi 松本歯科大学, 大学院・歯学独立研究科, 准教授 (30230220)
UMEMURA Tetsuhiro 松本歯科大学, 歯学部, 助手 (70460441)
MIYASHITA Midori 松本歯科大学, 歯学部, 助手 (20513154)
YAMADA Hidefumi 松本歯科大学, 歯学部, 助手 (60513174)
SAKURADA Kouiti 科学警察研究所, 法科学第一部, 室長 (10334228)
SHIMOJI Shigehiro 松本歯科大学, 歯学部, 助手 (10549380)
YAMADA Takahisa 松本歯科大学, 歯学部, 助手 (30549382)
ITOU Kana 松本歯科大学, 歯学部, 助手 (40549375)
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| Project Period (FY) |
2009 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 口腔外科学一般 / 血液飛沫 / 血液曝露 / 職業感染 / エアロゾル / 歯科診療 / 感染 / 血液 / 血液汚染 / 歯科治療 / 高速回転切削器具 |
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| Research Abstract |
To evaluate the aerial dispersal of contaminated bacterial aerosols we used blood-agar at 0.5m, 1.5m and 3.0m far from the patient mouth for 1 hour, and investigated the colony formation after 48 hour. The number of colony formation at 0.5m,1.5m and 3.0m were 829CFU/m^2/h, 537CFU/m^2/h and 543CFU/m^2/h, respectively, during impacted lower third molar extraction. Gram stein revealed 98% were GPC. Additionally,70% of the GPC formed colony on MS agar. Oral bacteria might have potentials to float over than 1.5m by using high speed rotating dental instrument.
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