title: Development of metal-resin composite for dental magnet keepers. Part 1: effects of filler and 4-META contents on setting and flexural properties.
abstract: Nine kinds of experimental soft magnetic resin composites containing SUS447J1 stainless steel particles as filler were prepared. A UDMA/MAA resin with an MAA mole fraction of 0.67 was used as a matrix resin. The effects of three levels of 4-META content and three levels of filler content on the setting and flexural properties were studied. Working time and setting time significantly increased with increase of 4-META and filler contents. Flexural strength significantly increased with increase of 4-META content but with decrease of filler content. Elastic modulus simply increased with increase of both 4-META and filler contents. Although the flexural strength obtained was low, results were considered promising being the first step of this novel development.
authors.affiliation: Division of Biomaterials, Advanced Research Center, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata 951-8580, Japan. soma@ngt.ndu.ac.jp
authors.forename: Hiroko
authors.initials: H
authors.lastname: Soma
authors.forename: Yukio
authors.initials: Y
authors.lastname: Miyagawa
mesh_terms: D003188:Composite Resins / Q000138:chemical synthesis* / Q000737:chemistry*; D003799:Dental Stress Analysis; D003781:Denture Retention / Q000295:instrumentation*; D003832:Denture, Partial, Removable; D004548:Elasticity; D008280:Magnetics / Q000295:instrumentation*; D008689:Methacrylates; D018583:Pliability; D011140:Polyurethanes; D013193:Stainless Steel; D014092:Tooth Root
chemical_list: D003188:Composite Resins; D008689:Methacrylates; D011140:Polyurethanes; C029824:urethane dimethacrylate luting resin; D013193:Stainless Steel; C008384:methacrylic acid; C034139:4-methacryloxyethyltrimellitic acid anhydride