Baking soda can raise surface discolorations however does not bleach tooth color; use sparingly
https://www.animenewsnetwork.com/bbs/phpBB2/profile.php?mode=viewprofile&u=1173414
Sodium bicarbonate can lift surface area spots but does not bleach tooth color; use moderately, and pair with fluoride tooth paste to secure enamel and strengthen teeth.