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:
Apr. 07, 1998
Filed:
Jul. 16, 1997
Applicant:
Inventors:
Leonard J Litkowski, Baltimore, MD (US);
Gary D Hack, Columbia, MD (US);
David C Greenspan, Gainesville, FL (US);
Assignees:
USBiomaterials Corporation, Alachua, FL (US);
University of Maryland, Baltimore, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; A61K / ;
U.S. Cl.
CPC ...
106 35 ; 501 24 ; 501 25 ; 501 57 ; 501 58 ; 501 63 ; 501 72 ; 424 49 ; 424 52 ; 424 57 ; 433226 ;
Abstract
A novel silica based bioactive glass composition that can be used in conjunction with a delivery agent such as a toothpaste, gel saliva, etc. having a particle size range <90 .mu.m which will form a rapid and continuous reaction with body fluids due to the immediate and long term ionic release of Ca and P from the core silica particles, to produce a stable crystalline hydroxy carbonate apatite layer deposited onto and into the dentin tubules for the immediate and long term reduction of dentin hypersensitivity.