Patent ID: 9427162
Filing Date: 2016-08-30
CPC Classification: A61B,A61C

Claim Text:
1. A method for matching a color shade of a tooth or teeth for shade matching dentition comprising the steps of: directing a first light spectra onto a surface of a tooth or teeth, said first light spectra having a first wavelength spectra corresponding to daylight spectra at a color temperature of about 5500° K, and visually comparing a color shade of said tooth or teeth to a plurality of selected color shades from a standard shade matching guide; selecting a desired color shade from said plurality of selected color shades, said selected desired color shade substantially corresponds visually to the color shade of said tooth or teeth with said first light spectra directed thereon; and directing a second light spectra or a third light spectra onto said surface of said tooth or teeth by switching from said first light spectra to said second light spectra or said third light spectra, said second light spectra having a second wavelength spectra corresponding to room light at a color temperature in a range of about 2800° K to 3200° K, said third light spectra having a third wavelength spectra corresponding to ambient light at a color temperature in a range of about 3400° K to 4200° K, and verifying said selected desired color shade by visually comparing said selected desired color shade to said color shade of the tooth or teeth being treated with said second light spectra or said third light spectra directed thereon.