Dental composition for dentin hypersensitivity
US5879663A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Aug 7, 1996 |
| Grant date | Mar 9, 1999 |
| Priority date | — |
| Expiry date | Aug 7, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K33/14
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
There is provided a dental composition for relieving dentin hypersensitivity, which occludes dentinal tubules having an opening on the surface of dentin to relieve dentin hypersensitivity thereby to give an immediate relieving effect and to maintain the relieving effect for a long time. The dental composition for relieving dentin hypersensitivity, which comprises (A) a low molecular weight compound which can produce a precipitate which is hardly soluble in water when it reacts with a calcium compound, or which comprises the above component (A), (B) a calcium compound and/or (C) an aqueous polymer emulsion having a particle size smaller than that of a dentinal tubule and forming an agglomerate or a hardly soluble gel larger than the diameter of a dentinal tubule when it reacts with a calcium compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.