Tooth bleaching compositions
US6312670A · kind A · utility
69Cited by
40References
10Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Apr 2, 1998 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Apr 2, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/88
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.