Method for whitening teeth
US5902568A · kind A · utility
71Cited by
29References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | May 11, 1999 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/88
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for whitening teeth is provided which involves applying to the teeth a mixture of a peroxide and a bicarbonate salt. Advantageously, the peroxide and bicarbonate salt are stored as active ingredients in separate respective compositions of a dispensing container. Preferably the dispensing container is a pump in the form of an upper and lower body telescopically engageable one with another, the upper body including at least two hollow and separate parallel cylinders each containing one of the compositions. These compositions may then be dispensed through relative compression of the pistons within the cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.