The Influence of Admixing Microfiller to Small-particle Composite Resin on Wear, Tensile Strength, Hardness, and Surface Roughness
作者： P. Pallav , A.J. De Gee , C.L. Davidson , R.L. Erickson , E.A. Glasspoole
DOI: 10.1177/00220345890680031101
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摘要: 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 ground quartz (macrofiller, 3 microns) colloidal silica (microfiller, 0.04 micron), total filler being constant at 68.5% by volume. study conducted to determine the influence an increasing ratio micro macrofiller mixtures. When gradually replaced 3, 5, 7.5, 10, 15, 20 vol% microfiller, wear resistance increased substantially, ultimately level. Any on roughness or strength hardness could not be demonstrated.
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