Can you whiten teeth with bicarbonate of soda
Bicarbonate of soda can help remove some surface stain, but it does not bleach intrinsic tooth colour and excessive abrasion can damage enamel.
The short answer
Bicarbonate of soda may polish away some surface stain, but it does not bleach the deeper tooth colour and should not replace fluoride toothpaste or professional assessment. Scrubbing hard or using it repeatedly can abrade enamel and expose sensitive dentine.
What is the direct answer?
What does this question mean?
Bicarbonate is a mild alkaline powder with a cleaning action, while peroxide whitening changes the colour of natural tooth structure through oxidation. The two actions are different, so a cleaner-looking surface is not the same as true bleaching.
What can you do next?
Use a soft brush and fluoride toothpaste with light pressure, and have persistent staining assessed rather than increasing the abrasiveness. A dentist can identify plaque, calculus, decay, enamel wear, or intrinsic staining and recommend the appropriate option.
When should you seek dental care?
Arrange care for sensitivity, enamel thinning, gum recession, a dark single tooth, pain, or stain that does not lift with routine cleaning. An examination is also appropriate before any whitening product when fillings or crowns are visible.
What should you ask the dentist?
Ask whether the colour is caused by surface deposits, decay, trauma, or natural tooth shade. Ask which toothpaste and whitening method protect your enamel and how existing restorations will look after natural teeth are lightened.
Frequently asked questions
Can it remove tartar?
No. Hardened tartar is attached mineralised deposit and needs professional removal.
Can it replace fluoride toothpaste?
No. Use a fluoride toothpaste for routine protection and ask a dentist about persistent staining.