Tooth Densensitizing Oral Care Compositions, Devices And Methods

Abstract

Desensitizing oral care composition useful for treating dentinal hypersensitivity, comprising potassium oxalate and methods of use thereof. Delivery systems including a strip of material and such oral care compositions for the treatment of dentinalhypersensitivity and methods of use thereof.

What is claimed is: 
     
         1 . A desensitizing oral care composition useful for treating dentinal hypersensitivity, comprising:
 a) from about 0.01% to about 25%, by weight of the composition, of a desensitizing agent selected from oxalic acid, salts of oxalic acid, and mixtures thereof;   b) from about 0.1% to about 30%, by weight of the composition, of an adhesive polymer thickener;   c) from about 0.01% to about 25%, by weight of the composition, of a supplementary desensitizing agent; and   d) less than 0.1%, by weight of the composition, of abrasive, 
wherein the composition has a pH of less than 10. 
     
     
         2 . The composition of  claim 1 , wherein the composition comprises at least 40%, by weight of the composition, of water. 
     
     
         3 . The composition of  claim 1 , wherein the composition comprises from about 1% to about 10%, by weight of the composition, of the desensitizing agent. 
     
     
         4 . The composition of  claim 1 , wherein the composition comprises from about 1% to about 6%, by weight of the composition, of the desensitizing agent. 
     
     
         5 . The composition of  claim 1 , wherein the composition comprises from about 0.5% to about 10% of the adhesive polymer. 
     
     
         6 . The composition of  claim 1 , wherein the composition comprises from about 1% to about 40% of a humectant. 
     
     
         7 . The composition of  claim 6 , wherein the humectant comprises a polyhydric alcohol. 
     
     
         8 . The composition of  claim 7 , wherein the polyhydric alcohol is glycerin, sorbitol, xylitol, or combinations thereof. 
     
     
         9 . The composition of  claim 1 , wherein the desensitizing agent is selected from potassium oxalate salts and mixtures thereof. 
     
     
         10 . The composition of  claim 9 , wherein the desensitizing agent is dipotassium oxalate. 
     
     
         11 . The composition of  claim 1 , wherein the adhesive-building polymer is selected from high molecular weight homo and co-polymers of acrylic acid crosslinked with a polyalkenyl polyether, and mixtures thereof. 
     
     
         12 . The composition of  claim 1 , wherein the supplementary desensitizing agent is potassium salt, a stannous ion source, a strontium ion source, a zinc ion source, capsaicin, 2-hydroxyethyl methacrylate, eugenol, a bioactive glass, an arginine compound, a fluoride ion source, a calcium ion source, or combinations thereof. 
     
     
         13 . The composition of  claim 12 , wherein the potassium salt is potassium nitrate, potassium chloride, potassium citrate, or combinations thereof. 
     
     
         14 . The composition of  claim 12 , wherein the stannous ion source is stannous fluoride, stannous chloride, or combinations thereof. 
     
     
         15 . The composition of  claim 12 , wherein the arginine compound is sodium arginine or alginic acid.