Comparative study between laser sintering and casting for retention of resin composite veneers to cobalt-chromium alloy
作者： Ryuta MURATOMI , Kohji KAMADA , Yohsuke TAIRA , Shizuo HIGUCHI , Ikuya WATANABE
DOI: 10.4012/DMJ.2013-082
关键词: Casting (metalworking) 、 Materials science 、 Metallurgy 、 Selective laser sintering 、 Ultimate tensile strength 、 Alloy 、 Fabrication 、 Bond strength 、 Composite material 、 Veneer 、 Tensile testing
摘要: The purpose of this study was to evaluate and compare the bond strengths between resin composite veneer laser-sintered cobalt-chromium (Co-Cr) alloy with without retention devices (Laser-R Laser-N respectively). Cast Co-Cr (Cast-R Cast-N respectively) were also prepared for fabrication technique comparison. Disk-shaped specimens air-abraded alumina veneered a veneering system, Estenia C&B (ES) or Ceramage (CE). After 20,000 thermocycles, tensile testing performed. Data analyzed by ANOVA multiple comparison test. When no present, significant differences observed Laser-N/ES Cast-N/ES, Laser- N/CE Cast-N/CE, but ES exhibited significantly higher strength than CE. With devices, Laser-R/ES, Cast- R/ES Laser-R/CE showed differences, their that R/CE. Compared cast alloy, provided better durability composite-veneered prostheses.
nagasaki-u.ac.jp
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