Hekimoğlu C, Anil N
Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey.
J Oral Rehabil. 1999 Sep;26(9):745-8. doi: 10.1046/j.1365-2842.1999.00434.x.
The purpose of this study was to determine the effect of simulated ageing on the physical properties of some soft denture liners. The hardness, tensile strength and percentage elongation values were determined before and after ageing treatment. At the end of the experimental ageing process softening was observed only in Simpa and Ufigel L materials. It was established that ageing had insignificant effect on the hardness of other materials. It can be presumed that there will not be significant time-related changes in the hardness of these materials. Molloplast B preserved its highest value after the ageing process, whilst that of Simpa decreased to become comparable with Ufigel P.
本研究的目的是确定模拟老化对一些软质义齿衬垫物理性能的影响。在老化处理前后测定硬度、拉伸强度和伸长率百分比值。在实验老化过程结束时，仅观察到Simpa和Ufigel L材料出现软化。已确定老化对其他材料的硬度影响不显著。可以推测这些材料的硬度不会随时间发生显著变化。Molloplast B在老化过程后保持了其最高值，而Simpa的硬度值下降，变得与Ufigel P相当。
