Lester K S, Mitchell P
Westmead Hospital Dental Clinical School, N.S.W., Australia.
Scanning Microsc. 1988 Mar;2(1):229-39.
Observations were made in an institutional setting on the quality of cleaning of dental burs. Assessments were made by scanning electron microscopy of surface contamination and change to the surface quality of burs before and after use, and as a result of different cleaning procedures. The most significant finding was the corrosive action on carbon steel burs of a phosphoric acid based cleaning solution in routine use at the time. We show by comparison the effectiveness and non-corrosive nature of an alternative detergent based on sulfamic acid, and propose a suitable cleaning routine. Two other findings are presented: new burs as unpackaged are unacceptable for use without first being subjected to a cleaning process (we recommend a suitable procedure); and there is a need for distilled water rather than tap water rinsing after detergent use. It is an important part of an institution's responsibility to monitor cleaning, sterilizing and supply services; the scanning electron microscope is a valuable adjunct in this aspect of quality assurance.
在机构环境中对牙科车针的清洁质量进行了观察。通过扫描电子显微镜评估了使用前后以及不同清洁程序后车针的表面污染情况和表面质量变化。最显著的发现是当时常规使用的基于磷酸的清洁溶液对碳钢车针有腐蚀作用。通过比较，我们展示了基于氨基磺酸的替代洗涤剂的有效性和无腐蚀性，并提出了合适的清洁程序。还提出了另外两个发现：未包装的新车针在未经清洁处理之前不能使用（我们推荐了合适的程序）；使用洗涤剂后需要用蒸馏水而不是自来水冲洗。监测清洁、消毒和供应服务是机构职责的重要组成部分；扫描电子显微镜在这一质量保证方面是一种有价值的辅助工具。
