| 摘要 |
<p>A SINGLE PHASE WHITENING DENTIFRICE THAT INCLUDES (I) A WHITENING AGENT SELECTED FROM THE GROUP CONSISTING OF HYDROGEN PEROXIDE, A BOUND PEROXIDE AND A SOLID PEROXIDE (II) AN ABRASIVE AND (III) A SUBSTANTIALLY ANHYDROUS ORALLY ACCEPTABLE CARRIER, FOR EXAMPLE, POLYETHYLENE GLYCOL. THE BOUND PEROXIDE MAY BE HYDROGEN PEROXIDE AND A POLYMER AND/OR ANY PEROXIDE COMPOUND AND A POROUS CROSS-LINKED POLYMER, SUCH AS POLYMERS OF POLYVINYL PYRROLIDONE, POLYACRYLATES, A POLYMETHACRYLATES, AND A POLYITACONATES. THE SOLID PEROXIDE MAY BE SODIUM PERBORATE OR UREA PEROXIDE. ALSO PROVIDED ARE METHODS OF WHITENING THE TOOTH SURFACES BY CONTACTING THE SURFACE WITH THE COMPOSITION.</p> |
