光重合型アクリレートを応用したリテンションビーズ接着剤

概要

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A light-cured acrylic aclhesive for fixing resin retention devices to the wax pattern was prepared. The adhesive consisted of trimethylolpropane triacrylate, 2-ethylhexyl acrylate, benzoin methyl ether, p-dimethylaminobenzaldehycle and 7-methoxyphenol. The adhesive couldbe cured with in 20 sec not only by an UV photo-curing unit btnt by a visible-light source with a xenon lamp. The adhesive and retention beads buruted out after about an hour in the electric furnace at 400℃. The metal speciunens with retention devices were cast in Ag-Pd-Cu-Au alloy with the use of two types of retention beads adhesive. The light-cured adhesive was superior to the conventional one in handling and some other properties. This adhesive may be used to fabricate composite veneered prostheses with mininaum errors in laboratory procedure.
1990-04-01