Compositions containing bioactive glass and their use in treating tooth hypersensitivity
US5735942A · kind A · utility
60Cited by
16References
20Claims
0Family size
Assignees
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Key dates
| Filing date | Jul 16, 1997 |
| Grant date | Apr 7, 1998 |
| Priority date | — |
| Expiry date | Jul 16, 2017 |
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 .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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.