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首页> 外文期刊>Journal of Clinical and Diagnostic Research >Breaking the Chain of Infection: Dental Unit Water Quality Control
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Breaking the Chain of Infection: Dental Unit Water Quality Control

机译：打破感染链：牙科部门的水质控制

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Introduction: The air?water syringes, ultrasonic scalers, high speed air turbine handpieces are connected to dental units by a network of small-bore plastic tubes through which water and air travel to activate or cool the instruments and it had been shown that this system is extensively contaminated with microbial biofilms and pose a potential risk of infection for patients as well as dental professionals. Aim: To evaluate and compare the efficacy of various disinfectants in reducing the microbial colony count in water derived from Dental Unit Waterlines. Materials and Methods: Five random dental units were selected and samples were collected before and after intervention with 5 disinfectants (0.02% H2O2 continuously, 0.02% H2O2 continuously with shock treatment with 0.25% H2O2 weekly, 0.12% Chlorohexidine and 12% Ethanol overnight, 1:50 Original Listerine overnight, 2% Sodium Perborate and 2% EDTA 5 minutes in morning) using different disinfection methods for 4 weeks. Samples were cultured on Reasoner?s 2A (R2A) agar for microbial counting. Results: Results were recorded as Colony forming units/ml (cfu/ml) and were evaluated statistically. Results showed that all the dental unit waterlines were heavily contaminated with microbes before any intervention. After 1 day of disinfection regime the counts reduced significantly and showed progressive reduction in consecutive weeks. Goals set by ADA & CDC were ultimately achieved at the end of 4 weeks. Conclusion: All the disinfectants were equally effective in reducing the microbial colony count of DUWLs, irrespective of their concentration and method of disinfection.
机译：简介：空气-水注射器，超声波洁牙机，高速空气涡轮机手机通过小口径塑料管网络连接到牙科设备，水和空气通过该管流动以激活或冷却器械，事实证明该系统被微生物生物膜广泛污染，对患者和牙科专业人员构成潜在的感染风险。目的：评估和比较各种消毒剂在减少来自牙科单位水线的水中微生物菌落数量的功效。材料和方法：随机选择五个牙科单位，并在使用5种消毒剂（连续0.02％H2O2，连续0.02％H2O2，每周0.25％H2O2、0.12％氯己定和12％乙醇过夜的电击治疗）干预之前和之后收集样本，1 ：50原始利斯特林素过夜，在早晨5分钟使用2％过硼酸钠和2％EDTA），使用不同的消毒方法，持续4周。将样品培养在Reasoner的2A（R2A）琼脂上进行微生物计数。结果：将结果记录为菌落形成单位/ ml（cfu / ml），并进行统计学评估。结果表明，在进行任何干预之前，所有牙科部门的水线都被微生物严重污染。消毒方案进行1天后，计数显着减少，并在连续几周内显示出逐渐减少的趋势。 ADA和CDC设定的目标最终在4周后实现。结论：无论其浓度和消毒方法如何，所有消毒剂在减少DUWL菌落数方面均具有相同的效果。

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