| 摘要 |
A dental bleach that includes a bleaching agent and a thickening agent. The bleaching agent is typically a peroxide and the thickening agent is polyvinylpyrrolidone. A viscous or sticky dental bleach results. Optionally, a basic agent, light or heat may be added to accelerate bleaching. Bleaching may take place with the use of a dental tray. Bleach may be placed into the dental tray from a single barrel, double barrel or multi-barrel syringe containing the components of the bleach. Bleach may be placed against a flexible strip which is placed onto teeth to be bleached.
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