Development of metal-resin composite for dental magnet keepers. Part 1: effects of filler and 4-META contents on setting and flexural properties.

Dent Mater J

Division of Biomaterials, Advanced Research Center, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata 951-8580, Japan.

Published: January 2007

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.

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Source
http://dx.doi.org/10.4012/dmj.26.129DOI Listing

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