Baking soda can raise surface spots however does not bleach tooth color; usage sparingly

https://www.mediafire.com/file/3yfkfsvs1jap819/pdf-74503-5942.pdf/file

Sodium bicarbonate can lift surface area stains but does not bleach tooth color; usage moderately, and couple with fluoride toothpaste to safeguard enamel and strengthen teeth.