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US 6,500,408 B2Granted
Enamel-safe tooth bleach and method for use
AssigneeJC Technologies, Inc.
InventorTianming Chen
Life of this patent
Estimating the term…
Abstract
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.
Claims8
A non-abrasive gel dental bleach adapted for sustained application to a patient's teeth, such as for an hour or more, the non-abrasive gel dental bleach comprising:
- a bleaching agent, said bleaching agent being capable of releasing an oxidizing agent, said oxidizing agent being capable of reacting with organic molecules located a human tooth in order to remove stains from the tooth,
- at least about 25% by weight of a polyvinylpyrrolidone (PVP) thickening agent,
- said PVP thickening agent being the only thickening agent in the non-abrasive gel dental bleach,
- said PVP thickening agent serving to thicken the non-abrasive gel dental bleach to the point where it will stick to a patient's teeth against the force of gravity for the entirety of a bleaching session that exceeds one hour in duration,
- said PVP thickening agent serving to thicken the non-abrasive gel dental bleach to the point where the nonabrasive gel dental bleach will remain in contact with a human tooth for the entirety of a bleaching session against the force of gravity,
- said PVP thickening agent serving to thicken the gel dental bleach to the point where the non-abrasive gel dental bleach will tend to maintain a dental bleaching tray in juxtaposition with a patient's teeth against the force of gravity during bleaching, and
- a liquid component,
- said non-abrasive dental bleach being free from abrasive materials,
- said non-abrasive dental bleach being adapted for application to human teeth from a dental bleaching tray;
- wherein said polyvinylpyrrolidone has a molecular weight in the range of 28,000 to 1,500,000;
- and
- wherein the non-abrasive gel dental bleach is substantially free from abrasive components.
9 more elements
A non-abrasive gel dental bleach adapted for sustained application to a patient's teeth, such as for an hour or more, the non-abrasive gel dental bleach comprising:
- about 0.5% to 60% by weight of a bleaching agent, said bleaching agent being capable of releasing an oxidizing agent, said oxidizing agent being capable of reacting with organic molecules located a human tooth in order to remove stains from the tooth, said bleaching agent including a peroxide selected from the group consisting of hydrogen peroxide, carbamide peroxide, sodium perborate and sodium percarbonate, and
- at least about 25% by weight of a thickening agent, said thickening agent consisting of polyvinylpyrrolidone (PVP),
- said PVP thickening agent being the only thickening agent in the non-abrasive gel dental bleach,
- said PVP thickening agent serving to thicken the non-abrasive gel dental bleach to the point where it will stick to a patient's teeth against the force of gravity for the entirety of a bleaching session that excceds one hour in duration,
- said PVP thickening agent serving to thicken the non-abrasive gel dental bleach to the point where the non-abrasive gel dental bleach will remain in contact with a human tooth for the entirety of a bleaching session against the force of gravity,
- said PVP thickening agent serving to thicken the gel dental bleach to the point where the non-abrasive gel dental bleach will tend to maintain a dental bleaching tray in juxtaposition with a patient's teeth against the force of gravity during bleaching,
- a liquid component, and
- a basic substance, said basic substance being capable of destabilizing said bleaching agent in order to accelerate release of said oxidizing agent from said bleaching agents said non-abrasive dental bleach being free from abrasive materials,
- said non-abrasive dental bleach being adapted for application to human teeth from a dental bleaching tray;
- wherein said polyvinylpyrrolidone has a molecular weight in the range of 28,000 to 1,500,000;
- and
- wherein the non-abrasive gel dental bleach is substantially free from abrasive components.
9 more elements
A non-abrasive gel dental bleach adapted for sustained application to a patient's teeth, such as for an hour or more, the non-abrasive gel dental bleach comprising:
- about 0.5% to 60% by weight of a bleaching agent, said bleaching agent being capable of releasing an oxidizing agent, said oxidizing agent being capable of reacting with organic molecules located a human tooth in order to remove stains from the tooth, said bleaching agent including a peroxide selected from the group consisting of hydrogen peroxide, carbamide peroxide, sodium perborate and sodium percarbonate, and
- at least about 25% by weight of a thickening agent, said thickening agent consisting of polyvinylpyrrolidone (PVP),
- said PVP thickening agent being the only thickening agent in the non-abrasive gel dental bleach,
- said PVP thickening agent serving to thicken the non-abrasive gel dental bleach to the point where it will stick to a patient's teeth against the force of gravity for the entirety of a bleaching session that exceeds one hour in duration,
- said PVP thickening agent serving to thicken the non-abrasive gel dental bleach to the point where the non-abrasive gel dental bleach will remain in contact with a human tooth for the entirety of a bleaching session against the force of gravity,
- said PVP thickening agent serving to thicken the gel dental bleach to the point where the non-abrasive gel dental bleach will tend to maintain a dental bleaching tray in juxtaposition with a patient's teeth against the force of gravity during bleaching,
- from about 0.2 to 80% by weight of a liquid component, and
- a basic substance, said basic substance being capable of destabilizing said bleaching agent in order to accelerate release of said oxidizing agent from said bleaching agent,
- said non-abrasive dental bleach being free from abrasive materials,
- said non-abrasive dental bleach being adapted for application to human teeth from a dental bleaching tray;
- wherein said polyvinylpyrrolidone has a molecular weight in the range of 28,000 to 1,500,000;
- and
- wherein the nonabrasive gel dental bleach is substantially free from abrasive components.
10 more elements
Dependencies are inferred from the claim text.