Baking soda can raise surface spots but does not bleach tooth color; use sparingly

https://codydjku752.trexgame.net/in-office-vs-at-home-whitening-which-is-right-for-you-2

Sodium bicarbonate can raise surface area stains but does not bleach tooth color; use moderately, and couple with fluoride tooth paste to secure enamel and enhance teeth.