Tooth shade analyzer system and methods
US7946845B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 2008 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Oct 13, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/513
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method of determining a tooth shade of at least a portion of a patient's tooth which is to be replaced or restored, by capturing an electronic image of the patient's tooth, the image including color information representative of the patient's tooth shade; storing color information representative of known tooth shades with each known tooth shade representing a different tooth color; calibrating the color information of the patient's tooth and the color information representative of known tooth shades; and comparing the color information of the patient's tooth with the stored color information to identify a single tooth shade or a combination of tooth shades with a color or combined color corresponding to the color of at least a portion of the patient's tooth, such that the patient's tooth may be comprised of a single tooth shade or a plurality of tooth shades.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.