| 摘要 |
The present invention relates to a dentifrice composition comprising a stannous compound that releases stannous ions in the composition such as stannous fluoride or stannous pyrophosphate. These stannous ions can be converted in the composition into the inactive stannic ions, and to prevent such conversion according to the present invention an antioxidant is incorporated into the composition, such as butylated hydroxyanisole, butylated hydroxytoluene and ethyl vanillin. |
