Light curable acrylic dental composition with calcium fluoride pigment

US4372836A · kind A · utility

Assignee

• ESPE Fabrik Pharmazeutischer Praparate GmbH · DE

Inventors

• Werner Schmitt · Starnberg, DE
• Robert Purrmann · Starnberg, DE
• Peter Jochum · Meiningen, AT
• Heinz-Joachim Hubner · Herrsching am Ammersee, DE

Key dates

• Filing date: Jul 31, 1979
• Grant date: Feb 8, 1983
• Expiry date: Jul 31, 1999

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K6/887
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

An improved opaque, photopolymerizable dental filling material is provided comprised of acrylic acid ester compounds containing mono and/or polyfunctional acrylic or methacrylic ester compounds, photoinitiators, pigments and possibly activators and silicon dioxide or silicate fillers, the improvement comprising the presence of finely divided calcium fluoride as a white pigment in a quantity of from 1-20 percent by weight. The presence of the calcium fluoride enables an opaque effect to be achieved without reducing the permeability of the filling material to polymerization radiation.