Poulis Nikolas, Prombonas Anthony, Yannikakis Stavros, Karampotsos Thanasis, Katsarou Martha-Spyridoula, Drakoulis Nikolaos
Laboratory Associate, Department of Dental Technology, Faculty of Health and Caring Professions, Technological Educational Institute of Athens , Egaleo, Attica, Greece .
Associate Professor, Department of Dental Technology, Faculty of Health and Caring Professions, Technological Educational Institute of Athens , Egaleo, Attica, Greece .
J Clin Diagn Res. 2016 Dec;10(12):ZC01-ZC05. doi: 10.7860/JCDR/2016/20330.8949. Epub 2016 Dec 1.
Surface integrity of dental elastomeric impression materials that are subjected to disinfection is of major importance for the quality of the final prosthetic restorations.
The aim of this qualitative Scanning Electronic Microscopy (SEM) study was to reveal the effects of immersion or ozone disinfection on the surface of four dental elastomeric impression materials.
Four dental elastomeric impression material brands were used (two vinyl polysiloxane silicones, one polyether, and one vinyl polyether silicone). Total of 32 specimens were fabricated, eight from each impression material. Specimens were immersion (0.525% sodium hypochlorite solution or 0.3% benzalkonium chloride solution) or ozone disinfected or served as controls and examined with SEM.
Surface degradation was observed on several speci-mens disinfected with 0.525% sodium hypochlorite solution. Similar wavy-wrinkling surface structures were observed in almost all specimens, when treated either with 0.3% benzalkonium chloride solution or ozone.
The SEM images obtained from this study revealed that both immersion disinfectants and ozone show similar impression material surface alterations. Ozone seems to be non-inferior as compared to immersion disinfectants, but superior as to environmental protection.
经过消毒的牙科弹性印模材料的表面完整性对于最终修复体的质量至关重要。
本定性扫描电子显微镜（SEM）研究的目的是揭示浸泡或臭氧消毒对四种牙科弹性印模材料表面的影响。
使用了四个牙科弹性印模材料品牌（两种乙烯基聚硅氧烷硅酮、一种聚醚和一种乙烯基聚醚硅酮）。共制作了32个样本，每种印模材料制作8个。样本进行浸泡（0.525%次氯酸钠溶液或0.3%苯扎氯铵溶液）或臭氧消毒或作为对照，并用扫描电子显微镜进行检查。
在用0.525%次氯酸钠溶液消毒的几个样本上观察到表面降解。在用0.3%苯扎氯铵溶液或臭氧处理时，几乎所有样本中都观察到了类似的波浪状皱纹表面结构。
本研究获得的扫描电子显微镜图像显示，浸泡消毒剂和臭氧都显示出类似的印模材料表面变化。与浸泡消毒剂相比，臭氧似乎并不逊色，但在环境保护方面更具优势。
