Oral Composition For Removing Tooth Stain

Abstract

[Problem] The object of the present invention is to provide an oral composition, which can remove tooth stain effectively. The object of the present invention is also to provide an oral composition, which scarcely damages teeth and gums and can be easily applied. [Method of solution] An oral composition for removing tooth stain, which comprises 3.5 to 30% by weight of peroxide and 5 to 20% by weight of phosphate polymer (in particular, ultraphosphate having an average chain length of phosphoric acid polymerization of 10 to 30).

1 . An oral composition for removing tooth stain,
 wherein the oral composition comprises 3.5 to 30% by weight of peroxide and 5 to 20% by weight of phosphate polymers or a salt thereof.   
     
     
         2 . An oral composition in accordance with  claim 1 ,
 wherein the phosphate polymer is ultraphosphate.   
     
     
         3 . An oral composition in accordance with  claim 2 ,
 wherein average chain length of polymerization of the ultraphosphate is 10 to 30.   
     
     
         4 . An oral composition in accordance with  claim 1 ,
 wherein the peroxide is hydrogen peroxide, calcium peroxide or carbamide peroxide.   
     
     
         5 . An oral composition in accordance with  claim 1 ,
 wherein pH of the oral composition is 6.5 to 8.   
     
     
         6 . An oral composition in accordance with  claim 1 ,
 wherein pH of the oral composition is 6.9 to 7.5.   
     
     
         7 . An oral composition in accordance with  claim 1 ,
 further comprising an infrared heating substance, and the oral composition being irradiated by infrared during use.   
     
     
         8 . An oral composition in accordance with  claim 7 ,
 wherein the infrared heating substance is charcoal.   
     
     
         9 . An oral composition in accordance with  claim 1 ,
 wherein the oral composition is used at 37 to 50° C.   
     
     
         10 . An oral composition in accordance with  claim 1 ,
 wherein concentration of the phosphate polymer or its salt is 7.5 to 12.5% by weight.   
     
     
         11 . An oral composition in accordance with  claim 1 , further comprising polyethylene glycol. 
     
     
         12 . An oral composition in accordance with  claim 11 ,
 wherein average molecular weight of the polyethylene glycol is 4000 to 10000.   
     
     
         13 . An oral composition in accordance with  claim 1   wherein concentration of the polyethylene glycol is 0.25 to 2% by weight.