A study of the prevention of environmental pollution caused by infections aerozol from dental treatment

牙科治疗中气溶胶感染环境污染的防治研究

• 批准号: 07672235
• 负责人: SUYAMA Yuji
• 金额: $ 1.54万
• 依托单位: TOKYO DENTAL COLLEGE
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07672235/
• 关键词: Preventive measures of infection; Airborne bacterium; Environmental monitoring; Oral-streptococci; Infection control; Aerosol; Airborne vacuum cleaner; Environmental pollution

Blood and drill dust from dental plaque microorganisms, teeth, and filling materials can cause environmental pollution in the dental clinic. Currently, as a preventive measure against air pollution from a patient's mouth during dental treatment. Detction of oral streptococci in the air-borne is used as an index on the presence of aerosol in consequence of the use of tooth preparation with high-speed air turbines. The air-borne bacteria in the dental clinics consisted of Guram-positive cocci (33%), Guram-positive bacilli (37%), Myces (38%). We recognized 30.6% oral-alpha-haemolytic streptococci according to the growth shown on Mitis-Salivarius agar disk, while 4.5% recognized on blood agar disk. But we could not find oral-alpha-streptococci from the airborne bacterium in the dental clinic's waiting room and in the research room.It was proved that oral-alpha-haemolytic streptococci was useful as an indicator for splashing infection control in the present study. We tested the eliminating effects by the Extra-Oral Vacuum Aspirator (EOVA) with the plaque solution aerosol and the aerosol from drilling a tooth by examining the distribution of floating aerosol in the air turbine's tank when a plaque solution was sprayd and when a human tooth was drilled with a plaque solution. We concluded that infectious aerosol increases in diameter with the drilling of human teeth to the size of about 0.5-5.0 mum, which is microbiologically and hygienically hazardous and also can be inhaled without much difficulty.In order to examine environmental pollution in the dental clinic during tooth preparation and operation area during scaling procedures using ultra sonic scaler. The EOVA was therefore viewed as an effective method for reducing air pollution in the dental clinic, and should be used when treating patients with certain infectious diseases. In tooth preparation with high-speed air turbines, tooth preparation dust from the patient's mouth is one risk for airborne infections.

牙菌斑微生物，牙齿和填充材料的血液和钻尘可能会在牙科诊所引起环境污染。目前，作为预防措施，可以在牙科治疗期间对患者口腔污染的空气污染。由于使用高速空气涡轮机使用牙齿制备，因此在气培中的口服链球菌被用作气溶胶存在的指数。牙科诊所的空气细菌由Guram阳性球菌（33％），Guram阳性杆菌（37％），Myces（38％）组成。根据Mitis-Salivarius琼脂盘的生长，我们认识到30.6％的口腔 - α-溶血性链球菌，而在血琼脂盘上识别的4.5％。但是我们找不到牙科诊所候诊室和研究室中空降细菌的口腔 - α-链球菌。证明，在本研究中，口腔 - α-溶血性链球菌链球菌可作为溅射感染控制的指标。我们通过检查牙菌盘溶液的浮动气溶胶在喷洒斑块溶液以及用斑块溶液钻孔时，通过检查气涡轮机罐中浮动气溶胶的分布来测试用斑块溶液气溶胶和气溶胶的消除效果，并通过检查牙齿。我们得出的结论是，通过钻探人的牙齿的大小达到约0.5-5.0妈妈的传染性气溶胶增加，这在微生物学和卫生上是危险的，并且可以在使用超级尺度级别的牙齿制备和操作过程中检查牙科诊所的环境污染而不困难。因此，EOVA被视为减少牙科诊所空气污染的有效方法，应在治疗某些传染病患者时使用。在用高速气动涡轮机进行牙齿准备时，患者口腔中的牙齿制备灰尘是空气传播感染的风险。

项目成果

荻野淳,須山祐之,他: "切削粉塵に伴う微生物粒子による院内感染防止に関する研究" 日本歯科医療管理学会雑誌. 31・1. 37-42 (1996)

Jun Ogino、Yuyuki Suyama 等：“与切割粉尘有关的微生物颗粒引起的院内感染的预防研究”日本牙科护理管理学会杂志 31・1（1996 年）。

須山祐之: "歯科診療時に伴い発生する感染性エアロゾルによる環境汚染の防止対策に関する研究" 日本衛生学会雑誌. 50. 245-245 (1995)

Yuyuki Suyama：“预防牙科治疗过程中产生的传染性气溶胶造成环境污染的措施研究”日本卫生学会杂志 50. 245-245 (1995)。

須山祐之: "歯科診療に伴い発生する感染性エアロゾルによる環境汚染と感染対策について" 口腔衛生学会雑誌. 45. 612-613 (1995)

Yuyuki Suyama：“牙科治疗和感染控制措施中产生的传染性气溶胶造成的环境污染”口腔健康协会杂志 45. 612-613 (1995)。

Akio Noro,Yuji Suyama他: "A study on Prevention of hospital infection control caused by tooth Preparation Dust in the Dental clinic." The Bulletin of Tokyo Dental College. 36・4. 201-206 (1995)

Akio Noro、Yuji Suyama 等：“牙科诊所中牙齿预备粉尘引起的医院感染控制的研究”，东京牙科学院通报 36・4（1995 年）。