Does bicarb whiten teeth
Bicarbonate may polish some surface stain, but it does not bleach internal tooth colour or replace fluoride toothpaste.
The short answer
Bicarbonate of soda can help remove some surface stain as a mild abrasive, but it does not bleach the internal colour of teeth or replace fluoride toothpaste.
What is the direct answer?
What does this question mean?
Tooth colour comes from the enamel surface and the dentine beneath it. Bicarbonate particles can polish external deposits, while true bleaching uses a peroxide gel that changes stain molecules within the tooth.
What can you do next?
Use a fluoride toothpaste for routine brushing and let a dentist identify whether discolouration is surface stain, intrinsic colour, decay, enamel loss, or a restoration. Professional cleaning can remove calculus and selected external stains without changing fillings or crowns.
When should you seek dental care?
Seek an examination for a single dark tooth, new bands of colour, sensitivity, holes, or a rough surface. Whitening should be planned after decay and gum inflammation are addressed, because bleaching products can irritate exposed tissues.
What should you ask the dentist?
Ask what type of stain is present and whether whitening will affect existing fillings, crowns, veneers, or implants. Ask which fluoride product and brushing technique suit your enamel and gum condition.
Frequently asked questions
Can bicarbonate remove deep yellow colour?
It may not change colour caused by dentine, enamel translucency, medication, or ageing.
Can frequent abrasive brushing damage enamel?
Repeated forceful abrasion can wear exposed tooth surfaces or irritate gums, so use a soft brush and light pressure.