Dental Whitening Compositions

Abstract

A two-component whitening system has a de-sensitizing effect as well as re-mineralizing capability. The system may be an unfoamed, a foamed or a foamable composition. The system has a first component with at least one peroxide compound, at least one source of phosphate and at least one gelling agent; and a second component with at least one source of calcium, strontium and/or mixtures thereof. The second component may also contain at least one gelling agent, and the composition maybe present as a foam or is foamable. The composition may be packed in a two-compartment syringe.

1 - 37 . (canceled)  
     
     
         38 . A light-activatable 2-component dental whitening system comprising: 
 a first component comprising at least one peroxide compound, at least one source of phosphate and at least one gelling agent; and    a second component comprising at least one source of calcium, strontium or mixtures thereof, and at least one gelling agent; wherein said peroxide compound decomposes in the presence of light.    
     
     
         39 . The light-activatable 2-component dental whitening system of  claim 38  wherein said second component comprises at least one peroxide compound.  
     
     
         40 . The light-activatable 2-component dental whitening system of  claim 38  wherein said second component further comprises an ingredient selected from a group consisting of a de-sensitizing agent, an antibacterial agent, a fluoridating agent, a vitamin supplement, an anti-staining agent, an anti-plaque agent and mixtures thereof.  
     
     
         41 . The light-activatable 2-component dental whitening system of  claim 38  wherein the source of phosphate in the first component is selected from the group consisting of monosodium phosphate (NaH 2 PO 4 ), disodium phosphate, tetrapotassium pyrophosphate and mixtures thereof  
     
     
         42 . The light-activatable 2-component dental whitening system of  claim 41  wherein said source of phosphate is adapted to adjust the pH value of the dental whitening system.  
     
     
         43 . The light-activatable 2-component dental whitening system of  claim 42  wherein the pH value of the system is about 5 to about 8.  
     
     
         44 . The light-activatable 2-component dental whitening system of  claim 42  wherein the pH value of the system is about 5.5 to about 6.5.  
     
     
         45 . The light-activatable 2-component dental whitening system of  claim 38  wherein the system is foamable.