Does baking soda bleach teeth
Baking soda does not bleach the internal colour of teeth; its fine alkaline particles can help remove some surface stain when used in a toothpaste formula
The short answer
Baking soda does not bleach the internal colour of teeth; its fine alkaline particles can help remove some surface stain when used in a toothpaste formulated for brushing.

What is the direct answer?
What does this question mean?
Sodium bicarbonate acts mainly by mechanical cleaning and by neutralising acids in the mouth. It cannot change the colour of fillings, crowns, veneers, or deep tooth discolouration caused by changes inside enamel or dentine.
What can you do next?
Use a fluoride toothpaste for routine brushing and do not replace it with loose kitchen powder. If you want a lighter shade, have stains and enamel wear assessed before choosing professional or tray whitening.
When should you seek dental care?
See a dentist for a grey, brown, or isolated dark tooth, pain, a cavity, or visible enamel loss. These findings may need diagnosis rather than a cosmetic powder.
What should you ask the dentist?
Ask whether your discolouration is surface stain or internal change. Ask which fluoride whitening toothpaste or peroxide treatment fits your enamel, restorations, and sensitivity.
Frequently asked questions
Could this symptom have more than one cause?
It does not whiten crowns, veneers, fillings, or other restorations.
What is the practical next step?
Fluoride toothpaste should remain the foundation of daily brushing.
