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| | Tooth bleaching compositions and methods of bleaching discolored tooth - Patent 6843981 |
 | | The tooth bleaching composition according to claim 1, wherein the chemical compound capable of generating hydrogen peroxide in an aqueous solution is selected from the group consisting of, perborate, percarbonate, persulfate, perphosphate, calcium peroxide, magnesium peroxide and urea peroxide. |
 | | The tooth bleaching composition according to claim 1, wherein the titanium dioxide is in particulate form, having a particle diameter of 1 to 500 nm. |
 | | The tooth bleaching composition according to claim 1, wherein the viscosity of the composition is in a range of 5,000 to 50,000 centipoise. |
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