What is the direct answer?
Bicarbonate of soda can remove some surface stain, but it does not bleach the internal colour of a tooth.
What does this question mean?
Sodium bicarbonate can loosen external deposits and stains on enamel. Rough or frequent scrubbing may irritate gums, wear exposed dentine, and make sensitivity noticeable.
What can you do next?
Use a soft brush and fluoride toothpaste for routine cleaning. A dentist can distinguish food stain, calculus, decay, fluorosis, and restoration colour.
When should you seek dental care?
Arrange care for a single dark tooth, chalky patches, pain, sensitivity, or bleeding gums.
What should you ask the dentist?
Ask whether the colour is surface stain or a change within the tooth and which cleaning or whitening method fits.
Frequently asked questions
Does it bleach teeth?
No. It mainly acts on surface deposits rather than internal tooth colour.
Can it replace toothpaste?
Routine brushing should use fluoride toothpaste rather than aggressive powder scrubbing.

