Santawisuk Wallapat, Kanchanavasita Widchaya, Sirisinha Chakrit, Harnirattisai Choltacha
Department of Conservative Dentistry and Prosthodontics, Faculty of Dentistry, Srinakharinwirot University.
Dent Mater J. 2013;32(6):970-5. doi: 10.4012/dmj.2013-083. Epub 2013 Nov 15.
The purpose of this study was to evaluate the mechanical properties of experimental silicone elastomers, Silastic(®) MDX 4-4210 reinforced with silica fillers, to assess its potential as a denture soft lining material. The mechanical properties measured included tensile strength, percentage elongation, tear strength, and Shore A hardness. Using one-way ANOVA and Tukey's HSD test, the results indicated that silicone elastomers with filler loadings of 6, 8, and 10 phr had significantly greater tensile strength, percentage elongation, tear strength with a softer surface compared with commercial materials (p<0.001). In conclusion, the experimental silicone elastomers revealed acceptable mechanical properties to be used as denture soft lining materials.
本研究的目的是评估用二氧化硅填料增强的实验性硅酮弹性体Silastic® MDX 4-4210的机械性能，以评估其作为义齿软衬材料的潜力。所测量的机械性能包括拉伸强度、伸长率、撕裂强度和邵氏A硬度。使用单因素方差分析和Tukey's HSD检验，结果表明，与商业材料相比，填料含量为6、8和10 phr的硅酮弹性体具有显著更高的拉伸强度、伸长率、撕裂强度，且表面更柔软（p<0.001）。总之，实验性硅酮弹性体显示出可接受的机械性能，可作为义齿软衬材料使用。
