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调查了口腔诊室采用超声波洁治时的空气污染情况。洁治开始前，诊室空气细菌培养平均为１．８４个菌落（细菌数４８３．０１个／ｍ￣３），而洁治开始后２小时平均为４．６５个菌落（细菌数１２２０．６６个／ｍ￣３）。两者差异有非常显著性意义（Ｐ＜０．０１）。本文采用０．１％洗必泰作为冷却水源以及洁治前含漱３％过氧化氢液这两种消毒措施，结果与未采取措施相比空气菌落数差异有非常显著性意义（Ｐ＜０．０１），而且前者效果优于后者，差别也有显著性意义（Ｐ＜０．０１）．
Investigated the oral clinic using ultrasonic cleaning air pollution situation. Before the start of the regimen, the average bacterial culture in the clinics was 1.84 colonies (483.01 bacteria / m ~ 3 bacteria), while the mean colonization was 4.65 bacteria (1220.66 bacteria / M ~ 3). There was a significant difference between the two groups (P <0.01). In this paper, 0.1% chlorhexidine as a cooling water source and 3% hydrogen peroxide before cleansing disinfection measures, the results compared with the lack of measures have significant differences in the number of air colonies (P <0 .01), and the former is better than the latter, the difference is also significant (P <0.01).