Process For Whitening Teeth And Composition and Kit Therefor
AssigneeColgate-Palmolive Company
InventorsNihal DOGU, Leighton Davies-Smith
Life of this patent
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Abstract
The present invention is directed to a process for electrochemically whitening a tooth, the process comprising: a) contacting the tooth with a whitening gel that is located in a dental device, the dental device comprising a positive electrode and a negative electrode; b) flowing a current between the positive electrode and the negative electrode through the whitening gel to whiten the tooth; wherein the whitening gel comprises: water; a bleaching agent; a thickener composition comprising a non-ionic compound; a surfactant; and an electrolyte source comprising a first conductive salt.
Claims20
A process for electrochemically whitening a tooth, the process comprising:
- a) contacting the tooth with a whitening gel and contacting the whitening gel with a positive electrode and a negative electrode of a dental device;
- b) flowing a current between the positive electrode and the negative electrode through the whitening gel to whiten the tooth;
- wherein the whitening gel comprises:
- water;
- a bleaching agent;
- a thickener composition comprising a non-ionic compound;
- a surfactant;
- and
- an electrolyte source comprising a conductive salt.
A conductive tooth whitening gel comprising a single component blend of a bleaching agent;
- a thickener composition comprising a non-ionic compound;
- a surfactant;
- an electrolyte source comprising a conductive salt;
- water in an amount ranging from about 65 wt. % to about 85 wt. % based on the total weight of the conductive tooth whitening gel;
- and
- a humectant in an amount ranging from about 1.0 wt. % to about 9.0 wt. % based on the total weight of the conductive tooth whitening gel.
A tooth whitening kit comprising:
- a dental device comprising a positive electrode and a negative electrode;
- a single component whitening gel comprising:
- a bleaching agent;
- a thickener composition comprising a non-ionic compound;
- a surfactant comprising an amphoteric surfactant;
- and
- an electrolyte source comprising a conductive salt present in an amount ranging from about 0.5 wt. % to about 6.0 wt. % based on the total weight of the single component whitening gel, wherein the conductive salt is selected from the group consisting of sodium chloride or potassium chloride;
- wherein the non-ionic compound is present in an amount ranging from about 1.0 wt. % to about 5.0 wt. % based on the total weight of the whitening gel.
Dependencies are inferred from the claim text.