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. 21, 1978
Filed:
Mar. 25, 1976
Applicant:
Inventors:
David N DiGiulio, Springfield Township, Hamilton County, OH (US);
Robert J Grabenstetter, Colerain Township, Hamilton County, OH (US);
Assignee:
The Procter & Gamble Company, Cincinnati, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; A01N / ;
U.S. Cl.
CPC ...
424 49 ; 424 52 ; 424 57 ; 424128 ; 424154 ;
Abstract
Demineralized tooth enamel is remineralized by first forming a metastable mixture by mixing a solution containing a soluble calcium salt with a solution containing a soluble phosphate salt, the mixture having a pH of from about 2.5 to about 4 and a ratio of calcium ions to phosphate ions of from 0.01 to 100; and second, applying the metastable mixture to the tooth surface. Preferably, the second solution contains a soluble fluoride salt and the metastable mixture has a pH of about 2.7.