Does baking soda brighten teeth

Baking soda can help remove some surface deposits, but it does not bleach intrinsic discoloration or replace fluoride toothpaste.

Baking soda is sodium bicarbonate, a mild alkaline powder with cleaning action. Its effect is mainly on external stains and deposits, while yellowing within dentine, age-related shade, fluorosis, and medication-related discoloration require a different assessment.

Use a fluoride toothpaste and a soft brush as the foundation of daily care rather than replacing toothpaste with kitchen powder. If you want a lighter shade, have the teeth and restorations examined before choosing a peroxide whitening treatment.

Seek dental advice for one dark tooth, new staining, sensitivity, enamel wear, cavities, or gum recession. A dentist can distinguish surface stain from internal discoloration and check whether cleaning, whitening, or restorative care fits the cause.

Ask whether your color change is external or inside the tooth, whether enamel or dentine is exposed, and whether any fillings or crowns will mismatch after whitening. Ask which product and technique suit your mouth.