Method of detecting periodontal disease by detecting the natural frequency of a tooth.
US5951292A · kind A · utility
10Cited by
4References
7Claims
0Family size
Inventors
Key dates
| Filing date | Sep 18, 1998 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Sep 18, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C19/043
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of detecting periodontal disease involves attaching a vibration detector to the tooth, causing the tooth to vibrate by means of striking the tooth with a hammer, and then picking up signals corresponding to of the vibration of the tooth for processing by a dynamic signal analyzer and a microprocessor using Fourier analysis. The location of the natural frequency of the tooth is determined based on the lowest point in the image mode and the point of contraflexure in the real mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.