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:
Nov. 16, 1982
Filed:
Oct. 30, 1979
Applicant:
Inventors:
Masakazu Nakamura, Takatsuki, JP;
Kikuko Hamato, Takatsuki, JP;
Assignee:
Sunstar Hamigaki Kabushiki Kaisha, Takatsuki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q / ; G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
424-7 ; 424 49 ; 435-4 ;
Abstract
A test composition for evaluating dental caries activity, which comprise a specific amount of a saccharide (e.g. sucrose, glucose and fructose) and a pH indicator (e.g. resazurin, lacmoid, methyl red and alizarin) in water or an aqueous alcohol solution, said composition being regulated to a pH range of 6.5 to 7.0 with an alkali (e.g. sodium hydroxide) and an acid (e.g. acetic acid, tartaric acid or lactic acid). By using this test composition, a test for evaluation dental caries activity can be done within a very short period of time (e.g. about 30 minutes) by any person without requesting any specific training.