Patent ID: 6555020
Filing Date: 2003-04-29
Classification: A61K,A61Q

Abstract:
An aqueous gel useful for bleaching teeth comprising:(i) water; (ii) a polyacrylic acid thickening agent; (iii) at least one bleaching agent selected from the group consisting of hydrogen peroxide and compounds that release hydrogen peroxide in water; and (iv) a stabilizing agent selected from the group consisting of EDTA, CDTA, and a salt thereof, wherein said bleaching agent is present in an amount ranging from about 20% to about 50% by weight, and wherein said polyacrylic acid thickening agent and said stabilizing agent are added in a weight ratio within the range of about 3.3:1 to about 3.5:1 that maintains said aqueous gel in a suitable gel form for 4 to 12 weeks at room temperature in a syringe plunger without self-expelling.