アブストラクト（26巻2号：The Bulletin of Kanagawa Dental College）

The Bulletin of Kanagawa Dental College

English

Title　： Tomorrow's Dental Resin Monomers
Subtitle　： BKDC CLINICAL AND RESEARCH TOPICS : Bioadaptives of Dental Materials
Authors　： Shigeaki Kurata
Authors（kana）　：
Organization　： Department of Dental Biotechnology and Bioengineering, Kanagawa Dental College
Journal　： The Bulletin of Kanagawa Dental College
Volume　： 26
Number　： 2
Page　： 92-97
Year/Month　： 1998 / 9
Article　： Report
Publisher　： Kanagawa Odontological Society
Abstract　： [Abstract] In this topic, four subjects concerning dental resin materials are discussed: their mechanical properties, polymerization shrinkage, antibacterial activity and biocompatibility. On the improvement of mechanical properties and polymerization shrinkage of the resins, various new monomers, inorganic-organic molecular composites and expanding-resins were investigated. In the research of antibacterial activity materials, several compounds were reported. There was little antibacterial activity of the phosphonium salt monomer, but that of the polymer was better compared with those of the ammonium salt monomer and its polymer. As applications of natural antibacterial substances, the activity of tissue conditioners containing bamboo extracts was investigated on Candida albicans. The adhesion of Candida albicans to the conditioners was significantly inhibited. The biocompatibility of monomer components of certain resin composites and of contemporary dentin bonding, such as BisGMA, TEGDMA, UDMA and HEMA, was studied by cytotoxicity test. However, the rank of TC50 values of four monomers reported by each investigator showed a different order. Then, the effects of various adhesive functional monomers on the growth of human pulp fibrobrast (HPF) were studied. The cell growth of HPF exposed to the monomers with the carboxy and phosphoric groups was remarkably depressed, and the monomer with the sulfonic group showed no effect.
Practice　： Dentistry
Keywords　： Dental resin monomer, Molecular composite, Polymerization shrinkage, Antibacterial activity, Biocompatibility