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US 7,125,543 B2Granted
Method and composition for preventing tooth hypersensitivity when using passive bleaching agents
OwnerMilton Hodoshinventor
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OwnerMilton Hodoshinventor
Estimating the term…
Dental bleaching compositions, for example in the form of liquids, gels, creams, pastes and ointments, comprising a peroxide releasing compound and from 1% to 35% by weight of a potassium-containing compound such as potassium nitrate, wherein the potassium nitrate is present in a safe and effective amount to prevent tooth hypersensitivity in the patient during the bleaching process. The potassium nitrate contemplated by the invention is compatible with peroxide yielding bleaching compounds such as peroxide, carbamide peroxide, calcium peroxide, zinc peroxide, magnesium peroxide and sodium perborate. Potassium nitrate is complimentary and synergistic with the peroxide bleaching agents contemplated by the invention and enhances the release of oxygen to the tooth enamel. Also contemplated are methods of bleaching teeth comprising application of the dental bleaching compositions of the invention.
A dental bleaching gel for inhibiting tooth hypersensitivity in a patient undergoing dental bleaching, comprising a combination of 5–30% by weight of a peroxide releasing tooth bleaching compound and from 1% to 35% by weight of potassium-containing compound, based on the total weight of the composition, wherein said potassium-containing compound is present in a safe and effective amount to inhibit tooth hypersensitivity from occurring upon application of the tooth bleaching composition to teeth, said composition not being a dentifrice and not containing an abrasive and wherein said potassium containing compound is selected from the group consisting of potassium bicarbonate, potassium biphthalate, potassium bromide, potassium chromate, potassium dichromate potassium phosphate, potassium sulfate, potassium chromium sulfate, potassium thiocyanate, potassium alum, potassium bitartrate, potassium bromate, potassium carbonate, potassium chlorate, potassium chloroplatinate, potassium perchlorate, potassium persulfate, potassium oxalate, potassium azide, potassium hydrogen sulfate, potassium iodate, potassium chloride, potassium acetate and potassium tartrate.
An orally compatible dental bleaching gel comprising
An orally compatible dental bleaching gel comprising
A method of inhibiting tooth hypersensitivity in a patient undergoing dental bleaching, comprising the step of:
Dependencies are inferred from the claim text.