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首页> 美国卫生研究院文献>GMS Hygiene and Infection Control >Evaluation of the PotoClean® decontamination technology for reprocessing of water supply lines in dental units during routine work
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Evaluation of the PotoClean® decontamination technology for reprocessing of water supply lines in dental units during routine work

机译：评估PotoClean®去污技术在日常工作中对牙科设备供水管线的后处理

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>Background: A frequent problem in dental units is the microbial contamination of water and biofilm formation in the water supply lines. After random identification of a bacterial contaminated dental unit (310 cfu/ml) in a practise with 3 dental units we implemented the present study to evaluate the efficacy of the PotoClean® technology, based on anodic oxidation. >Method: The efficacy of a regular low concentrated permanent decontamination (1 mg Cl/L) with an additional intensive decontamination by PotoClean® (three times 20 mg Cl/ml for 2 h) on three dental units was tested over 7 months. Microbial contamination, total chlorine concentration and redox potential have been analyzed. Dental unit A and B was 15 years old, unit C 5 years.>Results: After 3 intensive decontaminations, in dental unit A and B the number of bacteria and moulds could be reduced less than 7 d. Thereafter the bacteria counts increased again during the subsequent 7 month period and the amount of moulds was with some exceptions 300 cfu/ml, although PotoClean® was constantly added in the system (1 mg Cl/L). After further 7.5 month only with low concentrated permanent disinfection (1 mg Cl/L) both units were successful decontaminated. Dental unit C represented an object which was easier to decontaminate because of the advanced construction (prevention of water stagnation) and the shorter useful life. At the beginning of the decontamination it was no bacterial contamination, but moulds were contained (300 cfu/ml). Already after the first intensive decontamination, no further bacteria and moulds could be detected.>Discussion: An important factor for the efficacy of PotoClean® was the age of the units and their construction. For a new generation of dental units PotoClean® was effective during the whole period of monitoring. For two old types of dental unit with massive biofilm development the successful decontamination needed more than 7 month. >Conclusion: The PotoClean® technology has resulted in even old-type turbines with intensive biofilm formation to complete decontamination. In a recent turbine design already after the first intensive decontamination with PotoClean® and its continuous use (1 mg Cl/L) no more contamination by bacteria and moulds were detectable.
机译：>背景：牙科部门经常遇到的问题是水的微生物污染和供水管线中生物膜的形成。在3个牙科单位的实践中随机鉴定出细菌污染的牙科单位（310 cfu / ml）之后，我们实施了本研究，以评估基于阳极氧化的PotoClean ®技术的功效。 >方法：定期进行低浓度永久性去污（1 mg Cl / L）以及PotoClean ®进行的额外强力去污的功效（3次20 mg Cl / ml，持续2次） h）在七个月内测试了三个牙科设备。分析了微生物污染，总氯浓度和氧化还原电位。牙科部门A和B的年龄为15岁，牙科部门C的年龄为5年。>结果：经过3次密集的净化处理，牙科部门A和B中的细菌和霉菌数量可减少到7 d以内。此后，尽管随后不断在系统中添加PotoClean ®（1 mg Cl / L），但是在随后的7个月中细菌数量再次增加，霉菌的数量为300 cfu / ml（例外）。仅用低浓度的永久性消毒（1 mg Cl / L）再经过7.5个月后，两个装置均已成功消毒。由于先进的结构（防止水凝结）和较短的使用寿命，牙科设备C代表了一种易于消毒的物体。在净化开始时，没有细菌污染，但含有霉菌（300 cfu / ml）。第一次强力去污后，就再也没有发现细菌和霉菌了。>讨论：PotoClean ®功效的重要因素是设备的寿命及其结构。对于新一代的牙科设备，PotoClean ®在整个监测期间都是有效的。对于具有大量生物膜形成的两种旧类型的牙科设备，成功的净化需要超过7个月的时间。 >结论：PotoClean ®技术甚至导致具有密集生物膜形成功能的老式涡轮机也能完成去污。在最近的涡轮机设计中，在用PotoClean ®进行首次彻底除污并持续使用（1 mg Cl / L）之后，再也没有发现细菌和霉菌的污染。

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