口腔外抽吸机控制口腔诊室空气污染的研究

The research of the effect of oral external suction on environmental pollution control in dental clinic

目的 探讨口腔外抽吸机控制口腔诊室空气污染的作用。方法采用交叉实验设计，调查治疗过程中口腔外抽吸机吸引的干预措施下以及无干预措施时治疗室的空气卫生学状况，使用沉降法分别在距治疗区中心水平距离1m、2．5in，距地面1m高度采样，进行需氧菌培养、分离鉴定。结果口腔外抽吸机吸引干预时，空气中的细菌总量（273cfu/m^3）显著低于未采取干预措施治疗时（404cfu／m^3）。结论口腔外抽吸机吸引干预能有效降低口腔诊室的微生物污染，值得推广。

Objective To examine the effect of oral external suction on environmental pollution of microorganism in dental clinic. Methods Aerobe was counted as observation index of air contamination and air sample of the area leveal lm and 2. 5 m, hight 1m , which using oral cavity collectors of aspirator or not was collected by the method of sedimentation. Results The datum of the group with oral cavity collectors of aspirator was much lower than the group without it. Conclusion Environmental pollution from tooth treatment in dental clinic can be reduced by using oral external suction.