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首页> 外文期刊>British Dental Journal: The Journal of the British Dental Association >Summary of: Time-dependent recontamination rates of sterilised dental instruments.
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Summary of: Time-dependent recontamination rates of sterilised dental instruments.

机译：摘要：消毒后的牙科器械随时间变化的消毒率。

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摘要

Objectives To determine time-related recontamination rates of sterilised instruments, following guidance from the UK Department of Health (HTM 01-05) that such instruments within primary dental care may only be stored for 60 days following sterilisation using a vacuum autoclave. Materials and methods A total of 25 used examination mirrors underwent a washer-disinfector cycle, individual packaging and finally vacuum autoclaving. Immediately after autoclaving, time zero, five mirrors were tested for microbial contamination by aerobic and anaerobic culture. At 31, 60, 90 and 124 days a further five mirrors were removed from their packaging and were similarly tested for microbial contamination. Results There was no bacterial growth on blood-enriched media under both aerobic and anaerobic conditions after 5 days of incubation at 37°C at any time period from 0 to 124 days post-sterilisation. Conclusions There was no recontamination of sterilised instruments in this investigation over the test period of 124 days. This exceeds the recommended limit of 60 days stated by the UK Department of Health. The new guidance, HTM 01-05, appears to place an extra burden on primary care dentists. This burden is not without associated costs, and at present does not appear to be based on published evidence.
机译：目的为了确定消毒器械与时间相关的再消毒率，应遵循英国卫生部（HTM 01-05）的指导，即在初级牙科护理中使用的此类器械只能在用真空高压灭菌器消毒后保存60天。材料和方法总共对25个用过的检查镜进行清洗消毒循环，单独包装以及最后进行真空高压灭菌。高压灭菌后，时间为零，立即通过有氧和厌氧培养对五个镜子进行微生物污染测试。在第31、60、90和124天时，从包装中取出了另外5面镜子，并进行了类似的微生物污染测试。结果在有氧和无氧条件下，在灭菌后0到124天的任何时间段内，于37°C孵育5天后，在富血培养基上都没有细菌生长。结论在这项调查中，在124天的测试期间内没有对消毒器械进行再污染。这超过了英国卫生部规定的建议的60天限制。新指南HTM 01-05似乎给初级保健牙医带来了额外负担。这种负担并非没有相关的费用，目前看来还不是基于公开的证据。

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