Formable composition and its use as filling material for dental root canals
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United States of America Patent
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May 28, 1996
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N/A
app pub date -
Oct 18, 1994
filing date -
Jul 31, 1990
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Abstract
There are provided formable compositions which comprise: (A) 25 to 80% by weight of a glass ionomer cement, containing (a) an aluminum fluorosilicate glass, (b) at least one polymeric polyacid with an average molecular weight >500, (c) water and (d) optionally a chelating agent; (B) and 20 to 75% by weight of a fluoride and/or oxide and/or mixed fluoride and/or mixed oxide of heavy metal elements which are essentially insoluble at ambient temperatures in an aqueous solution containing the polymeric polyacid and/or an aqueous solution containing the chelating agent. The compositions are especially well suited as filling materials for dental root canals.
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