The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 1996
Filed:
Oct. 18, 1994
Applicant:
Inventors:
Oswald Gasser, Seefeld, DE;
Rainer Guggenberger, Herrsching, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424422 ; 523115 ; 523116 ; 523117 ; 424617 ; 424696 ; 524403 ; 524406 ; 524413 ; 524434 ; 524539 ; 524610 ;
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.