Baking powder and toothpaste for teeth whitening

Baking powder mixed with toothpaste does not bleach tooth color; abrasive scrubbing can remove surface stain while irritating enamel or gums.

Baking powder is mainly a leavening mixture, while toothpaste contains cleaning and polishing ingredients designed for oral use. Mixing them changes texture and abrasivity without creating a controlled bleaching treatment.

Use a soft brush and fluoride toothpaste for routine cleaning, and have persistent discoloration assessed before choosing a whitening method.

Stop abrasive mixtures if teeth become sensitive or gums feel sore, and seek examination for one dark tooth, bands, pits, or discoloration that does not brush away.

Ask whether the color is surface stain, enamel change, dentin showing through, decay, or a restoration, and which treatment addresses that cause.