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:
Mar. 16, 1999
Filed:
Jul. 15, 1997
Applicant:
Inventors:
Thomas Arwel Roberts, Congleton, GB;
Kozo Miyai, Nara, JP;
Kunio Ikemura, Joyo, JP;
Kiyomi Fuchigami, Kyoto, JP;
Toshio Kitamura, Uji, JP;
Assignee:
Shofu Inc., Kyoto, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C08K / ;
U.S. Cl.
CPC ...
523116 ; 523117 ; 523212 ; 524443 ; 524556 ; 524450 ; 524845 ; 524847 ; 524916 ; 501151 ;
Abstract
There is provided a fluoride-ion sustained release pre-formed glass ionomer filler comprising a powdery reaction product of polyalkenoic acid with a fluorine-containing glass, and a method of producing the same. There is also provided a dental composition containing the filler. The fluoride-ion sustained release pre-formed glass ionomer filler is long capable of releasing fluoride ions in the presence of water without involving disintegration. The dental composition of the invention is useful particularly for prevention of dental caries and like trouble.