Official Gazette of the United States Patent & Trademark Office Patents 1228(2), Nov 9
1999
An oral composition for the treatment of dentinal hypersensitivity containing a dentinal hypersensitivity reducing or relieving amount of an active compound selected from casein, a component of casein, a phosphoprotein and a phosphopeptide, or salts thereof containing the amino acyl residues --Ser (P) --Ser (P) --Ser (P) --where Ser (P) is phosphoserine.