Pallav P, De Gee A J, Davidson C L, Erickson R L, Glasspoole E A
Department of Clinical Materials Science, ACTA, University of Amsterdam, The Netherlands.
J Dent Res. 1989 Mar;68(3):489-90. doi: 10.1177/00220345890680031101.
A series of photo-initiated composite resins, with a Bis-GMA-TEGDMA resin matrix, was investigated in vitro for occlusal wear, surface roughness, diametral tensile strength, and hardness. The materials contained mixtures of ground quartz (macrofiller, 3 microns) and colloidal silica (microfiller, 0.04 micron), with total filler being constant at 68.5% by volume. The study was conducted to determine the influence of an increasing ratio of micro to macrofiller in the mixtures. When the macrofiller was gradually replaced by 3, 5, 7.5, 10, 15, and 20 vol% of microfiller, wear resistance increased substantially, ultimately to a constant level. Any influence on surface roughness or tensile strength and hardness could not be demonstrated.
对一系列以双酚 A 缩水甘油醚-三乙二醇二甲基丙烯酸酯（Bis-GMA-TEGDMA）树脂为基质的光引发复合树脂进行了体外研究，以考察其咬合磨损、表面粗糙度、径向拉伸强度和硬度。这些材料包含磨碎的石英（大颗粒填料，3 微米）和胶体二氧化硅（微颗粒填料，0.04 微米）的混合物，填料总体积恒定为 68.5%。开展该研究是为了确定混合物中微颗粒填料与大颗粒填料比例增加所产生的影响。当大颗粒填料逐渐被 3%、5%、7.5%、10%、15%和 20%体积的微颗粒填料替代时，耐磨性大幅提高，最终达到恒定水平。未发现对表面粗糙度、拉伸强度和硬度有任何影响。
