Methods of Whitening Teeth

Abstract

The present invention relates to improved dental compositions and methods for bleaching teeth. More specifically, this invention is directed towards hydrogen peroxide-containing compounds that are maintained at a substantially constant pH range of 6.0-10.0 during the tooth-bleaching procedure in the presence of a calcium chelating agent.

1 - 12 . (canceled) 
     
     
         13 . A method for whitening teeth with a whitening composition comprising:
 dispensing a whitening composition comprising hydrogen peroxide, a thickening agent, a pH adjusting agent, a calcium chelating agent into a dental tray;   positioning said dental tray over a patient's teeth such that said whitening composition is in constant contact with said patient's teeth; and   leaving said dental tray in place over said patient's teeth for at least 20 minutes; wherein said whitening composition has a pH greater then 5.5 and said process is repeated at least twice a day.   
     
     
         14 . The method for whitening teeth of  claim 13 , wherein said whitening composition is dispensed from a single exit multi-component tube containing a static mixing baffle into said dental tray.