| Project/Area Number |
02670856
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
Conservative dentistry
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| Research Institution | Tokyo Dental College |
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Principal Investigator |
TAKAHASHI Kazuyu Tokyo Dental College, Conservative Dentistry, Professor., 歯学部, 教授 (60085743)
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| Co-Investigator(Kenkyū-buntansha) |
NORO Akio Tokyo Dental College, Conservative Dentistry, Lecturer, 歯学部, 講師 (90147231)
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| Project Period (FY) |
1990 – 1991
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| Project Status |
Completed (Fiscal Year 1991)
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| Budget Amount *help |
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1991: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1990: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | teeth preparating / inhaling dust / amount of men exposed / individual sampling / XMA analysis / 吸入性粉麈 |
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| Research Abstract |
The air borne dusts was measured for 30days using "BETA ATT MASS MONITOR" in Suidoubashi and Chiba both dental hospital and two private dental office. As a result, these density was 0.032mg/m^3 in average. This numerical value was less than the average level of the building-room of the Ministry of Labor. However, the consequence which observed of men exposed to teeth preparating produce dusts to total number of 30 dentists and analyzed of the individual sampling by XMA was prorved that the amount of inhaling dusts gathering from the sample was increased three times of the air borne dusts in dental treatment rooms. Also, the size of inhaling dusts was 5 to 10mum and its shape was formed irregularly and these dust particles was divided the tooth substance(P. Ca)and the metal materials(Pd. Ag. Au).
Among the air borne dusts, in particular teeth preparating dusts as it may include of some infected substance blood, saliva or virus, it is important to take measure to meet the situation for dusts control and protecting from its.
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