Compositions containing bioactive glass and their use in treating tooth hypersensitivity
US6338751B1 · kind B1 · utility
42Cited by
78References
2Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 31, 1998 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Mar 31, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
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 &mgr;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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.