Sodium bicarbonate can raise surface area stains however does not bleach tooth color; use sparingly

https://www.mediafire.com/file/1gsn0k70oqdbrfg/pdf-41463-69205.pdf/file

Baking soda can raise surface discolorations however does not bleach tooth color; usage moderately, and pair with fluoride toothpaste to safeguard enamel and strengthen teeth.