Dental-caries detector
US4215698A · kind A · utility
21Cited by
10References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1978 |
| Grant date | Aug 5, 1980 |
| Priority date | — |
| Expiry date | Jun 8, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0534
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dental-caries detector for the determination of dental caries by measurement of the electrical conductivity or other electrical property of a tooth, which dental-caries detector comprises: an electrically conductive, caries-detector probe having a probe tip which is adapted to be placed on a wet, electrically conductive area of the tooth; a dry air mechanism for providing a surrounding curtain of drying air about the probe tip to provide a dry, electrically nonconductive area about the probe tip; and a shield surrounding the probe tip to seal the probe tip from the dry area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.