PMID: 2486700Jan 1, 1989Paper

Fundamental study on photocured resin for crown and bridge

Fukuoka Shika Daigaku Gakkai Zasshi
T Komoto

Abstract

The purpose of this study is to clarify the superiority of five polyfunctional acrylates to composite filler and comonomer system, and the reasonable concentration of catalyst, Camphor quinone/Dimethylamino-ethylmethacrylate (CQ/DMAEMA), in the photocured resin for crown and bridge. The results are summarized as follows: 1. The influence of acrylate resin matrix of composite fillers was found in the elastic modulus (Em), Knoop hardness (Hk) and the wear resistance (Rw) of the photocured resin. Two photocured resins including Dipentaerythrytol hexaacrylate (DPHA) or DPHA-4(3-acryloxy propyl) tetramethylol methane (DPHA-APTM) composite fillers showed a higher Em, Hk and Rw but slightly lower tensile strength (Ts) and bending strength (Bs) than the one which included Bis-2-methacryloxyethyl 2, 2, 4-trymethyl hexamethylene diurethane (UDMA) or Trimethylolpropane trimethacrylate (TMPTMA) under a wet condition. And these two resins showed as a high water sorption value (Ws) as that of the photocured resin of UDMA. 2. The conversion of polymerization, cured depth and physical properties (Em, Hk and Rw) of the photocured resins were examined. They increased up to 0.5/1.0 or 1.0/1.0 in proportion to the increase of the concentration of ...Continue Reading

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