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:
Aug. 09, 1983
Filed:
Dec. 30, 1980
Applicant:
Inventors:
Assignee:
Sankin Industry Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C12Q / ; C12Q / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
435-4 ; 424-71 ; 424 49 ; 424 78 ; 424 83 ; 435 34 ; 436163 ;
Abstract
Compositions capable of evaluating dental caries activity by making use of color reaction, which are composed of an aqueous solution containing coloring agents and water-soluble substances that are to produce an osmotic pressure higher than the physiological one on the cell membrane of cariogenic bacteria but free from any buffer action by themselves. Upon introducing dental plaque of a dental caries patient into this solution and thus measuring activity of the sordes by means of color reaction, it is possible to evaluate readily the status praesens of dental caries and its activity without any cultivation of cariogenic bacteria being required.