Baking soda and brushing teeth

Baking soda can help remove surface stains, but fluoride toothpaste remains the main daily protection against tooth decay.

Sodium bicarbonate is a mild abrasive and alkaline powder. It does not replace fluoride, which supports remineralisation of early enamel damage.

Brushing with baking soda usually means applying the powder directly or using a toothpaste that contains it. The brushing action loosens plaque, while the powder may polish deposits on the enamel surface.

Surface stain is different from intrinsic colour within dentine, tartar, decay, or a defective filling. A powder cannot correct those deeper causes of discolouration.

Use a soft toothbrush with fluoride toothpaste for routine brushing, cleaning the gumline and all tooth surfaces with gentle pressure. If you use a bicarbonate product, follow its label and do not scrub harder to chase a whiter shade.

A dental professional can remove calculus with instruments and assess stains before recommending polishing, peroxide whitening, or restorative treatment.

Arrange an examination for persistent yellow or brown areas, rough deposits, sensitivity, bleeding, pain, or a tooth that has changed colour after an injury. These findings can indicate calculus, erosion, decay, gum disease, or pulp damage.

Seek prompt care for facial swelling, fever, spreading redness, or difficulty swallowing or breathing.

Ask whether the colour is surface stain, calculus, enamel wear, decay, or an intrinsic tooth change. Ask which fluoride product and brushing technique fit your enamel and gum condition.

If whitening is your goal, ask whether cleaning, peroxide whitening, or treatment of a filling or crown would address the actual cause.