Dental bleach

  • US 6,730,316 B2
  • Filed: 11/05/2002
  • Issued: 05/04/2004
  • Est. Priority Date: 01/27/2001
  • Status: Expired due to Term
First Claim
Patent Images

1. A dental bleaching composition that is viscous and tacky yet sufficiently flowable for placement adjacent to a dental tray or strip of material in order to bleach teeth, the dental bleaching composition comprising:

  • polyvinylpyrrolidone as a primary or sole thickening agent;

    a liquid component that when mixed with said polyvinylpyrrolidone forms a viscous and tacky gel, said liquid component comprising water; and

    at least one dental bleaching agent selected from the group consisting of hydrogen peroxide, carbamide peroxide, sodium perborate, and sodium percarbonate.

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