화학공학소재연구정보센터
Journal of Industrial and Engineering Chemistry, Vol.10, No.3, 395-401, May, 2004
Effect of Urethane Dimethacrylate Diluent on the Mechanical Properties of Hybrid-filled Polymeric Dental Restorative Composites
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Hybrid-filled polymeric dental restorative composites (PDRC) were prepared using a visible light activation system. The resin matrix system of the PDRC that we adopted in this study was 2,2'-bis-[4-(3methacrytoxy-2-hydroxypropoxy)phenyl]propane diluted with triethyleneglycol dimethacrylate and/or urethane dimethacrylate (UDMA). The hybrid-filler system was used as an inorganic filler component in the composite. To improve the dispersibility of the hybrid-filler in the PDRC, the filler's surface was coupled hydrophobically with a silane compound. In the present study, we investigated the effect of UDMA diluent on the mechanical properties of the PDRC by measuring the values of the diametral tensile strength, flexural strength, and flexural modulus. A scanning electron microscopy study indicated the superior surface characteristics of the PDRC product we prepared.
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