Methods of whitening teeth

  • US 6,958,144 B2
  • Filed: 01/17/2002
  • Issued: 10/25/2005
  • Est. Priority Date: 09/25/1995
  • Status: Expired due to Term
First Claim
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1. A method for whitening teeth of a subject comprising the steps of sequentiallyapplying to the teeth a first composition having a pH of between about 7 and about 10 and comprising an alkalizing agent, and contacting the teeth with a tooth bleaching compostion comprising hydrogen peroxide, wherein the teeth are in contact with the tooth bleaching compostion for a time range of 15 and 30 minutes.

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