| 摘要 |
Methods and delivery systems for whitening teeth are provided. The methods include the steps of providing a flexible strip of material, applying a layer of a tooth whitening substance having a whitening active selected from the group consisting of peroxides, metal chlorites, perborates, percarbonates, peroxyacids, hypochlorites, and combinations thereof to a front surface of a plurality of teeth, conforming the strip of material to the front surface of the plurality of teeth, and conforming the strip of material to interstitial spaces between the plurality of teeth. The strip of material serves as a protective barrier for the tooth whitening substance for a sufficient period of time for the tooth whitening active to act upon the plurality of teeth. The delivery systems include a strip of material sized to cover a front surface of a plurality of teeth, wherein the strip of material is substantially flat and has sufficient flexibility to conform to the front surfaces of the plurality of teeth and to interstitial spaces there between during use. The delivery systems further include a layer of a tooth whitening substance in contact with the strip of material, wherein the tooth whitening substance includes a whitening active selected from the group consisting of peroxides, metal chlorites, perborates, percarbonates, peroxyacids, hypochlorites, and combinations thereof.
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