Baking soda good for whitening teeth
Baking soda can remove some surface stains, but it does not bleach the tooth’s internal colour and should not replace fluoride toothpaste.
The short answer
Sodium bicarbonate is mildly abrasive; it can disturb external pigment on enamel, while peroxide whitening changes colour within enamel or dentine.

What is the direct answer?
What does this question mean?
This question identifies a dental concern that may involve a particular material, symptom or service. The answer depends on the anatomy involved, the mechanism causing the finding and the patient’s wider oral-health context.
What can you do next?
Use gentle, practical care while arranging the appropriate next step. A dentist may inspect the mouth, test teeth or gums, and use imaging or cleaning procedures when the finding cannot be assessed by sight alone.
When should you seek dental care?
Seek dental care when the problem persists, recurs, causes pain or affects eating. Get urgent help for spreading swelling, fever, uncontrolled bleeding, injury, or difficulty breathing or swallowing.
What should you ask the dentist?
Ask which tissue or material is involved, what caused the finding, which examination is needed, and what treatment or maintenance plan fits your teeth, gums, restorations and bite.
Frequently asked questions
What causes it?
Causes vary, so the examination focuses on the exact tissue, timing and triggers.
Can I manage it at home?
Gentle cleaning and avoiding the trigger may help, but home care cannot replace treatment for decay, infection or structural damage.
