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对被生物膜污染的牙科设备进行冲洗和强化冲洗去污。

Purge- and intensive-purge decontamination of dental units contaminated with biofilm.

作者信息

Kramer Axel, Assadian Ojan, Bachfeld Danny, Meyer Georg

机构信息

Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Germany.

出版信息

GMS Krankenhhyg Interdiszip. 2012;7(1):Doc11. doi: 10.3205/dgkh000195. Epub 2012 Apr 4.

Abstract

INTRODUCTION

During hygienic-microbiological monitoring of the water quality in dental units, the total bacterial colony count was found to exceed the limits for drinking water quality; in addition, mold contamination was detected. The presumed cause was irregular decontamination of the units through purging and intensive decontamination.

METHODS

To decontaminate the units, the manufacturer's recommended program for cleaning and intensive decontamination was intensified by shortened intervals over a 2-week period. For Sirona units, instead of once a day, the automatic purge program was run every morning and evening for 20 min each time, and instead of once a month, intensive decontamination was performed every two weeks; this schedule has been maintained since then. For KaVo units, cleaning with the hydroclean function was carried out for 2.5 min every morning and evening. The automatic intensive decontamination was run daily instead of weekly. A maintenance log book was introduced, in which decontamination/cleaning was confirmed by the operator's signature.

RESULTS

Within 5 weeks, all previously contaminated units were decontaminated.

DISCUSSION

By shortening the cleaning and intensive decontamination intervals in a 2-week period with subsequent control that the recommended maintenance intervals were kept, it was possible to guarantee drinking-water quality in the dental units of both manufacturers.

摘要

引言

在对牙科设备水质进行卫生微生物监测时,发现细菌总数超过了饮用水水质标准;此外,还检测到霉菌污染。推测原因是设备通过冲洗和强化去污进行的去污操作不规范。

方法

为了对设备进行去污,在两周内通过缩短间隔强化了制造商推荐的清洁和强化去污程序。对于西诺德(Sirona)设备,自动冲洗程序从每天一次改为每天早晚各运行一次,每次20分钟,强化去污从每月一次改为每两周一次;此后一直保持这个时间表。对于卡瓦(KaVo)设备,每天早晚利用水清洁功能进行2.5分钟的清洁。自动强化去污改为每天进行而非每周进行。引入了一本维护日志,由操作员签字确认去污/清洁情况。

结果

在5周内,所有先前受污染的设备都完成了去污。

讨论

通过在两周内缩短清洁和强化去污间隔,并随后控制保持推荐的维护间隔,得以确保两个制造商生产的牙科设备的饮用水质量。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/cecf/3334959/7b6768f4dc66/KHI-07-11-t-001.jpg

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