US Patent No. 10,596,086 B2
(Niranjan Ramji, Douglas Craig Scott); The Procter & Gamble Company
has patented a dentifrice composition that contains stannous fluoride; sodium lauryl sulfate; of a polyphosphate selected from the group consisting of dialkali or tetra alkali metal pyrophosphate salts, tripolyphosphate, and mixtures thereof; and a flavoring agent comprising 4-methoxybenzaldehyde (anisaldehyde); 1,3-benzodioxole-5-carbaldehyde (heliotropin); 3,4-dimethoxybenzaldehyde (veratraldehyde); 3-methyl-1,2-cyclopentadione; phenethyl formate; acetophenone; phenylacetaldehyde; 4-methylacetophenone; ρ-toluacetaldehyde; 3,5,5-trimethyl-2-cyclohexene-1-one (isophorone); gamma-undecalactone; ρ-methyl cinnamaldehyde; 4-phenyl-2-butanone (benzyl acetone); octanal; 6-isopropyl-3-methyl-1-cyclohex-2-enone (piperitone); (S)-4-(1-methylethenyl)-1-cyclohexene-1-carboxaldehyde (perillaldehyde); 4-(1-methylethyl) benzaldehyde (cuminaldehyde); α-methyl cinnamaldehyde; isomenthone; menthone; carvone; decanal; 3-hydroxy-2-methyl-4H-pyran-4-one (maltol); or combinations thereof. The polyphosphate is the only source of polyphosphate in the dentifrice composition, which has a percent reduction in stain from the stannous fluoride of at least about 40%.