Bertolotti R L, Hurst V
J Am Dent Assoc. 1978 Oct;97(4):628-32. doi: 10.14219/jada.archive.1978.0335.
Comparisons were made of several dip-applied corrosion inhibitors for protection of carbon steel dental instruments during autoclaving. Although none were totally effective, several provided significant corrosion inhibition. Sodium nitrite and one proprietary inhibitor were about equally effective and notably superior to the other inhibitors investigated. Because sodium nitrite is a food preservative that is relatively harmless when ingested in small quantities, whereas commercial inhibitors are of proprietary composition and unspecified toxicity, we prefer to use sodium nitrite for corrosion inhibition during autoclaving. Sodium nitritie is readily available from chemical suppliers and is generally much less expensive than most commercial inhibitors. Although the autoclave used in this investigation is typical of many used in clinical situations, minor variations in design, steam impurities, and other unknown factors might effect the results. Further research is needed to determine the corrosive effects of impurities in the steam supply, residual detergents, method of postautoclave drying, steam supply deoxygenation, pH, and possibly the use of oxygen scavengers within the autoclave.
对几种浸渍型缓蚀剂进行了比较，以保护碳钢牙科器械在高压灭菌过程中不受腐蚀。虽然没有一种缓蚀剂是完全有效的，但有几种提供了显著的缓蚀效果。亚硝酸钠和一种专利缓蚀剂的效果大致相同，明显优于所研究的其他缓蚀剂。由于亚硝酸钠是一种食品防腐剂，少量摄入相对无害，而商业缓蚀剂成分保密且毒性不明，我们更倾向于在高压灭菌过程中使用亚硝酸钠进行缓蚀。亚硝酸钠很容易从化学供应商处购得，而且通常比大多数商业缓蚀剂便宜得多。虽然本研究中使用的高压灭菌器是许多临床使用的典型设备，但设计上的微小差异、蒸汽杂质和其他未知因素可能会影响结果。需要进一步研究以确定蒸汽供应中的杂质、残留洗涤剂、高压灭菌后干燥方法、蒸汽供应脱氧、pH值以及可能在高压灭菌器内使用除氧剂的腐蚀作用。
