10.01.18
• US Patent No. 9,987,203 B1; Unwined, Inc., Bunnell, FL, has patented a method of improving the cosmetic appearance of human teeth that entails contacting the teeth with a whitening powder composition after ingesting a chromogenic, tannin-containing food or beverage; and allowing the whitening powder to dissolve thereby reducing staining of the teeth caused by tannins and/or chromogens.
The whitening composition is comprised of abrasive powder (silica compound), a buffering powder and complexing agent.
The whitening composition is comprised of abrasive powder (silica compound), a buffering powder and complexing agent.
