A method for whitening teeth that includes contacting at least one tooth with a composition that includes a bleaching agent; a carrier; and an acrylate/.alpha., .beta.-ethylenically unsaturated dicarboxylic acid or anhydride copolymer such as an acrylate itaconate copolymer. The acrylate itaconate copolymer may be an alkali-swellable polymer and the composition may further include an alkaline additive.

Метод для забеливать зубы вклюает контактировать по крайней мере один зуб с составом вклюает отбеливая вещество; несущая; и acrylate/.alpha., кислота beta.-ethylenically unsaturated двукарбоновые или сополимер ангидрина such as сополимер itaconate акрилита. Сополимер itaconate акрилита может быть алкали-alkali-swellable полимером и состав может более далее включить алкалическую добавку.

 
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