Use of ozone to whiten teeth
US6877985B2 · kind B2 · utility
0Cited by
16References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 2002 |
| Grant date | Apr 12, 2005 |
| Priority date | — |
| Expiry date | Mar 2, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C19/066
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Method and apparatus for the whiting of teeth includes a source of oxidizing gas and a handpiece for delivering the gas to a tooth. A cup attached to the handpiece is provided for receiving the gas and exposing a selected area of the tooth to the gas. The cup includes a resilient edge for sealably the edge for engaging the tooth around the selected area to prevent escape of a gas therepast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.