Polymerizable radiopaque dental composition
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United States of America Patent
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Nov 21, 1989
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N/A
app pub date -
Aug 11, 1988
filing date -
Mar 18, 1986
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Abstract
A polymerizable, radiopaque dental composition including: one or more ethylenically unsaturated, polymerizable monomer and/or polymer, possible conventional fillers, pigments, initiators, activators, and thixotropic auxiliary material, as well as, in addition, a heavy-metal fluoride with very low solubility selected from the group consisting of complex heavy-metal fluorides having the general formula M.sup.II M.sup.IV F.sub.6, where M.sup.II is a calcium, strontium, or barium ion, and M.sup.IV is a titanium, zirconium, or hafniun ion. These filler compositions exhibit excellent X-ray visibility along with excellent optical properties.
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