Bacterial aerosols in the dental clinic: effect of time, position and type of treatment
Bacterial aerosols in the dental clinic: effect of time, position and type of treatment
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DOI：
10.1002/j.1875-595x.2000.tb00807.x
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发表时间：
2000-04-01
影响因子：
3.3
通讯作者：
Leggat, P
中科院分区：
文献类型：
--
作者：
Kedjarune, U;Kukiattrakoon, B;Leggat, P
目的：本研究的目的是调查同一多毛牙科诊所不同部位在工作前、工作中和工作后细菌总气溶胶浓度的变化。此外，还调查不同类型的牙科手术产生的气溶胶以及环境对总细菌气溶胶的贡献(如果有)。方法：用缝隙-琼脂空气采样器在多毛牙科诊所的三个位置进行空气采样，每天三次，在工作前、工作中和工作后三周内进行。这项研究的第二部分，在另一家多毛牙科诊所进行，在工作前和三种类型的牙科程序中进行。结果：细菌总气溶胶和芽孢杆菌的浓度。在牙科诊所循环的空气中，一天结束时比开始时要低。牙科门诊不同部位及三种牙科治疗后细菌总气溶胶浓度无明显变化。芽孢杆菌的浓度。空气中主要不是在牙科手术过程中产生的，可能来自环境来源，减少了。结论：本研究提示牙科治疗前、中、后空气中不同类型细菌的比例可能会发生变化。可能需要制定预防措施，以减少非工作期间牙科诊所内细菌气雾剂的积累。
Objectives: The objectives of this study were to investigate changes in the concentration of total bacterial aerosols before, during, and after the working period at different positions within the same multichair dental clinics. Also to investigate the contribution to total bacterial aerosols, if any, of the aerosols generated from different types of dental procedures, as well as the environment. Methods: Air sampling using a Slit-to-Agar air sampler at three positions in a multichair dental clinic, performed three times per day over a three week period before work, during work and after work. The second part of the study, in another multichair dental clinic, was performed before working and during three types of dental procedures. Results: The concentration of total bacterial aerosols and Bacillus sp. in air which circulated in the dental clinic was lower at the end of the day than at the beginning. There was no significant change in the concentration of total bacterial aerosols in different positions in the dental clinic or after the three types of dental treatments. The concentration of Bacillus sp. in air not mainly generated during dental procedures and which may come from an environmental source, was reduced. Conclusions: This study suggests that the proportions of different types of bacteria in air may change before, during and after dental treatment. Preventive measures may need to be instituted to reduce build up of bacterial aerosols in the dental clinic during non-working periods.