Tooth shade analyzer system and methods
US6358047B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2001 |
| Grant date | Mar 19, 2002 |
| Priority date | — |
| Expiry date | Jul 30, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J3/513
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method for determining a patient's tooth shade, by generating an electronic image of a patient's tooth wherein the image includes color information representative of the patient's tooth shade; electronically storing color information representative of a plurality of tooth shades; and comparing the color information of the image with the stored tooth shade color information to identify one or more tooth shades having a combined color that corresponds to the patient's tooth shade. Another method of the invention includes the steps of electronically imaging a patient's tooth to obtain an image that includes color information representative of the patient's tooth shade; electronically displaying the color information of the image; selecting one or more pixels of the displayed image, which pixels correspond to differential spatial locations of the patient's tooth, that provide color information; and electronically comparing the color information from the selected pixels with the stored tooth shade color information to determine the color of that portion of the patient's tooth. A device and handpiece for carrying out the method and the reconstructed tooth that …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.