Periodontal disease detection system and method
US10039489B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2014 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Nov 5, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7282
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Intra-oral imaging apparatus and/or method embodiments can provide digital dental reflectance images used to identify selected areas of interest (AOI) within a dental region of interest (ROI) having selected image characteristics for both hemoglobin's total concentration and oxygenation level. In one embodiment, reflectance images can determine relative total hemoglobin using at least a wavelength band that includes an isobestic wavelength for absorption coefficients of oxyhemoglobin (HbO2) and deoxyhemoglobin (Hb). In one embodiment, intra-oral imaging apparatus and/or method embodiments can use reflectance images of a dental region at least at three wavelengths; a control logic processor for processing the reflectance images to determine relative tHb and its relative oxygenation level and/or identify disease areas having periodontal tissues condition; and a display for displaying periodontal tissues or a visual indication of the areas having selected imaging characteristic determined by the reflectance images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.