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アブストラクト(20巻2号:The Bulletin of Kanagawa Dental College)
English
Title : | A Study on Composition and Dynamic Mechanical Thermal Analysis of Commercial Visible Light Cured Denture Lining Resin |
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Subtitle : | ORIGINAL ARTICLES |
Authors : | Kozo Umemoto, Shigeaki Kurata* |
Authors(kana) : | |
Organization : | Departments of Dental Materials, Kanagawa Dental College, *Departments of Chemistry, Kanagawa Dental College |
Journal : | The Bulletin of Kanagawa Dental College |
Volume : | 20 |
Number : | 2 |
Page : | 147-153 |
Year/Month : | 1992 / 9 |
Article : | Original article |
Publisher : | Kanagawa Odontological Society |
Abstract : | [Abstract] The composition of two commercial visible light cured resin liners for a denture, TRIAD(R) and EPOREX-R, was studied. The organic constituents of the liners were characterized by gel permeation chromatography, infrared spectroscopy and nuclear magnetic resonance spectroscopy. The inorganic content was measured by a thermal gravimetric analysis. The visco-elastic properties, such as the storage modulus (E') and tan δ, were measured by a dynamic mechanical thermal analysis. The organic constituents of TRIAD(R) comprised mainly the urethan dimethacrylate. Those of EPOREX-R included probably the bisphenol grycidyl dimethacrylate and triethylenegrycol dimethacrylate. Both TRIAD(R) and EPOREX-R contained about 24 percent inorganic substance by weight. On the other hand, those liners also contained organic-inorganic complex fillers. It is suggested that E' and tan δ values of those liners are more stiffness than the polymethyl methacrylate at above 140℃. |
Practice : | Dentistry |
Keywords : | Visible Light Cured Resin, Denture Liner, Dynamic Mechanical Thermal Analysis, Compositional Analysis |