Method and device for whitening teeth using sonochemistry
US9566140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2011 |
| Grant date | Feb 14, 2017 |
| Priority date | — |
| Expiry date | Dec 30, 2031 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C19/066
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Tooth whitening device for whitening teeth using sonochemistry includes a body, and an ultrasonic transducer provided in the body. The ultrasonic transducer is configured for producing ultrasonic waves in the range of 20-100 kHz, and good results have been achieved with ultrasonic waves at a frequency of 40 kHz. There is an ultrasonic horn provided on the body, and the ultrasonic horn is operatively connected with the ultrasonic transducer. A liquid retaining element is provided on the ultrasonic horn, and the liquid retaining element is configured for retaining a liquid tooth whitening composition against a user's teeth. The liquid retaining element may be a sponge or a replaceable pad, such as a foam pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.