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:
Dec. 14, 1993
Filed:
Mar. 28, 1989
Melvyn Rosenberg, Ramat-Gan, IL;
Assif Science and Technology Projects Development Ltd., Ramat-Gan, IL;
Abstract
The invention provides a method for indicating the level of oral microbial activity comprising providing a sterile liquid for introduction into the oral cavity for swishing therein, providing a transparent vessel having therein an indicator which undergoes a characteristic color change in the presence of oxygen-consuming microbes and placing the swished liquid together with nutrients to enhance microbial growth in the vessel, whereby the indicator undergoes a color change as a function of time, which color change is an indication of the level of microbial activity in the swished expectorated liquid. The invention also provides a kit for use in carrying out the method comprising a sterile liquid, a transparent vessel for use in receiving the expectorate, and an indicator to be provided in the vessel to produce a visual indication of the level of microbial activity in the expectorated liquid.