Dental bleaching gel composition and activator
AssigneeAdDent, Inc.
InventorsAbhijit Banerjee, Joshua Friedman
Life of this patent
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Abstract
A dental bleaching gel composition having a long shelf life for use with an activator system to cause accelerated bleaching action over a shortened time period of a peroxide bleaching agent in the bleaching gel composition when applied upon a tooth surface for cosmetically whitening the tooth and/or for the treatment of stains or discolorations.
Claims12
1- A dental bleaching composition for bleaching and whitening the teeth of a human comprising a peroxide bleaching agent, a thickening agent to form a viscous gel, at least one FD & C approved dye and at least one bleaching agent stabilizer for minimizing the affect of said peroxide bleaching agent on dye discoloration during storage of the peroxide bleaching agent and dye for use in combination with an activator comprising an activating agent soluble in water and selected from the group consisting of manganous chloride and/or an enzyme selected from the group consisting of catalase, peroxidase, dopamine β-hydroxylase, peptide glycine α-hydroxylase.
2- A dental bleaching composition as defined in claim 1 wherein said bleaching composition has a pH of less than 7.
3- A dental bleaching composition as defined in claim 2 wherein said FD & C approved dye is selected from the group consisting of a FD & C Red dye and/or a FD & C Yellow dye.
4- A dental bleaching composition as defined in claim 2 wherein said bleaching agent stabilizer includes a metal ion scavenger and an antioxidant.
5- A dental bleaching composition as defined in claim 4 wherein said bleaching agent stabilizer is selected from the group consisting of tin phosphates, tin phosphonates, amino phosphonates, sodium sulfite and a metal chelate such as EDTA di sodium.
6- A dental bleaching composition as defined in claim 3 wherein said thickening agent comprises a copolymer of polyethylene oxide and polypropylene oxide.
7- A dental bleaching composition as defined in claim 3 wherein said thickening agent further comprises glycerol and a chloride salt.
8- An activator for activating a dental bleaching composition containing a peroxide bleaching agent with the activator comprising an activating agent which is soluble in water and is selected from the group of consisting of manganous chloride and/or an enzyme selected from the group consisting of catalase, peroxidase, dopamine β-hydroxylase, peptide glycine α-hydroxylase and a dental applicator for inactively storing the activating agent in a dry form until contact is made between the activator and the peroxide bleaching composition.
9- An activator for activating a dental bleaching composition as defined in claim 8 wherein said dental bleaching gel composition contains a stabilized peroxide bleaching agent, a thickening agent to form a viscous gel, at least one FD & C approved dye and at least one bleaching agent stabilizer for minimizing the affect of said peroxide bleaching agent on dye discoloration during storage of the peroxide bleaching agent and wherein said bleaching gel composition has a pH of less than 7.
An activator as defined in claim 9 wherein said applicator is an appliance comprising a stem having a tip at one end covered with synthetic or natural fibers integrated to form a micro brush having intertices adapted to retain dried particles of activating agent.
Dependencies are inferred from the claim text.