How long does tooth whitening baking powder take to whiten teeth?

Variable: Whitening toothpaste serves to whiten stained teeth but will have little effect on the natural tooth color.

Baking Soda?: Baking soda is used in some toothpaste as a bactericidal agent. That is it kills bacteria that cause periodontal disease and caries. It is mildly abrasive so it does remove stain but your better off having a dental cleaning and using bleaching agent supplied by a dentist if you want to whiten your teeth.

Expectations?: It depends upon your expectations. The effect is usually minimal at best. If you want any substantial whitening, you may have to wait forever. I recommend that you have a consultation with your own dentist to discuss your treatment options. Then you will be better informed as to what you can expect regarding time, money and amount of whitening. Besides there are other important considerations.

Disappointing: If you truly want whiter teeth see your Dentist. Over the counter remedies don't work well. Save the Baking Powder for use in recipes.