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首页> 外文期刊>Journal of orofacial orthopedics >Corrosion of Orthodontic Pliers Using Different Sterilization Procedures
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Corrosion of Orthodontic Pliers Using Different Sterilization Procedures

机译：使用不同的消毒程序腐蚀正畸钳子

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Aim: The aim of this study was to investigate the corrosion resistance of orthodontic pliers from several manufacturers following different sterilization procedures, namely heat sterilization and the use of a disinfectant agent (Sekusept Extra N) in an ultrasonic bath. Material and Methods: Employed in this study were ten distal-end cutters and ten Weingart pliers manufactured by Aesculap, ETM and Hu-Friedy, examined under electron microscopy for evidence of corrosion following 500 sterilization cycles. The corrosion data were recorded photographically and graphically. Metallographic microsections were prepared from each pair of pliers and were then analyzed by means of EDX measurements to assess the chemicaL alloy composition. Results: The light and electron microscopic evaluation showed that both heat sterilization and high level disinfection caused corrosive changes on the pliers. However, the type of corrosion differed between the two sterilization methods. The main type of corrosion with Sekusept Extra N was pitting, while with heat sterilization it was surface corrosion. Heat sterilization was the type of corrosion that caused the most corrosive changes, regardless of which type of corrosion was considered. However, these results must be viewed criticaLly, because pitting corrosion is obviously a more severe problem than surface corrosion. In comparing the pliers of various manufacturers, differences were noted. However, it was difficult to rank them when the correct maintenance regime was adhered to. The soldered joint gap was reveaLed to be a specific weak point, and that area proved to be inadequate due to qualities related to their production, particularly in the Hu-Friedy pliers. Conclusions: This study showed that heat sterilization leads to less corrosion than cold disinfection. Corroded pliers can be restored to a useable condition by re-polishing, though it is important that the instructions for their care be strictly adhered to.
机译：目的：本研究的目的是研究几种制造商的正畸钳子的耐腐蚀性，这些正畸钳子采用不同的消毒程序，即加热消毒和在超声波浴中使用消毒剂（Sekusept Extra N）。材料和方法：本研究使用的是十把远端切割器和十把由Aesculap，ETM和Hu-Friedy制造的Weingart钳，并在电子显微镜下检查了500个灭菌周期后的腐蚀迹象。腐蚀数据通过照相和图形记录。从每对钳子制备金相显微切片，然后通过EDX测量进行分析以评估化学合金成分。结果：光和电子显微镜评估表明，高温灭菌和高强度灭菌均会引起钳子的腐蚀变化。但是，两种消毒方法之间的腐蚀类型不同。 Sekusept Extra N腐蚀的主要类型是点蚀，而加热灭菌则是表面腐蚀。不管考虑哪种腐蚀方式，加热灭菌都是引起最大腐蚀变化的腐蚀方式。但是，这些结果必须受到批评，因为点蚀显然比表面腐蚀更严重。在比较各种制造商的钳子时，注意到了差异。但是，如果遵循正确的维护方案，则很难对它们进行排名。焊接的缝隙被重新确定为一个特定的薄弱点，并且由于与生产相关的质量，特别是在胡弗里迪钳子中，该面积被证明是不足的。结论：这项研究表明，与冷消毒相比，热消毒导致的腐蚀更少。锈蚀的钳子可以通过重新抛光恢复到可用状态，尽管严格遵守其保养说明很重要。

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