Sodium bicarbonate can raise surface discolorations however does not bleach tooth color; use moderately

https://archeruitq354.fotosdefrases.com/the-ultimate-guide-to-expert-teeth-whitening-what-to-expect-1

Sodium bicarbonate can raise surface discolorations but does not bleach tooth color; use moderately, and couple with fluoride tooth paste to protect enamel and strengthen teeth.