Inoue Minoru, Nakajima Hiroshi, Akiba Norihisa, Hibino Yasushi, Nagasawa Yuko, Sumi Yasunori, Minakuchi Shunsuke
Gerodontology and Oral Rehabilitation, Department of Gerontology and Gerodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University.
Dent Mater J. 2015;34(1):70-7. doi: 10.4012/dmj.2014-028. Epub 2015 Jan 17.
The influence of monomer content on the viscoelasticity, water sorption and solubility of experimental fluorinated soft lining materials was investigated. Changes in the viscoelastic properties of the materials were also examined after thermal cycling. Four fluorinated soft lining materials containing different amounts of methoxy diethylene glycol methacrylate (MDGMA) and tridecafluorooctyl methacrylate (13FMA) were prepared. The viscoelastic displacement for specimens containing 13FMA was found to be less than that without 13FMA (p<0.05), and the values tended to decrease with increasing 13FMA content. Reduction of the MDGMA content and addition of 13FMA caused a decrease of water sorption and solubility (p<0.05). Thermal cycling was found to affect the viscoelastic deformation of the specimens without 13FMA and those specimens with relatively large amounts of 13FMA.
研究了单体含量对实验性含氟软衬材料粘弹性、吸水性和溶解性的影响。热循环后还检测了材料粘弹性性能的变化。制备了四种含有不同量甲基丙烯酸甲氧基二甘醇酯（MDGMA）和甲基丙烯酸十三氟辛酯（13FMA）的含氟软衬材料。发现含13FMA的试样的粘弹性位移小于不含13FMA的试样（p<0.05），且该值倾向于随13FMA含量的增加而降低。MDGMA含量的降低和13FMA的添加导致吸水性和溶解性降低（p<0.05）。发现热循环会影响不含13FMA的试样以及含相对大量13FMA的试样的粘弹性变形。
