How to Get Rid of Yellow Teeth: Match the Fix to the Cause
Why teeth yellow, which treatment suits each cause and how to prevent it coming back.
Editorially reviewed. Dental review: scheduled, not yet completed for this article.
How to get rid of yellow teeth depends on the cause. Surface stains from coffee, tea or wine often respond to a professional clean and whitening. Yellowing from thinning enamel or stains inside the tooth may need supervised whitening, bonding, veneers or crowns.
Yellowing is one of the most common cosmetic complaints, and it is easy to spend money on products that cannot reach the problem. Matching the fix to the cause saves time and protects your enamel.
Why do teeth turn yellow?
Cleveland Clinic groups discolouration into two broad types and lists the usual causes of yellowing:
| Cause | Type | What is happening |
|---|---|---|
| Dark foods and drinks (coffee, tea, berries, red wine, soy sauce) | Extrinsic (surface) | Pigments build up on the outer enamel over time |
| Plaque | Extrinsic | Plaque holds stain; yellowing can be a sign brushing and flossing need improving |
| Ageing | Age-related | Enamel thins and the yellowish dentin underneath shows through |
| Dental trauma or some medications | Intrinsic (inside the tooth) | Colour change affects the dentin layer |
If you take regular medication and notice colour change, mention it at your check-up so your dentist can consider whether it is contributing.
Which treatments work for which kind of yellowing?
Surface stains
A professional clean is a sensible first step: Cleveland Clinic explains that scaling removes plaque and tartar, and polishing removes what is left behind. Whitening toothpaste can help maintain results: Colgate explains that mild abrasives polish away surface stains, although the Australian Dental Association notes these pastes do not tend to make a large difference to tooth colour.
Deeper or age-related yellowing
Bleaching changes the colour of the tooth itself. Cleveland Clinic says professional whitening uses hydrogen peroxide or carbamide peroxide to break up stains, and works best on surface stains, though some products also address deeper ones. The ADA describes two dentist-supervised approaches: in-chair whitening with a strong hydrogen peroxide gel, and take-home whitening with custom-made trays, which takes longer but is not necessarily better or worse in the end.
Stains that whitening will not shift
When whitening is not enough, Cleveland Clinic lists cosmetic options:
- Bonding: tooth-coloured composite resin hides discoloured areas; touch-ups are typically needed every five to seven years.
- Veneers: thin ceramic shells bonded to the front of teeth, typically lasting five to 15 years, and not reversible.
- Crowns: suited to teeth that are also weakened or decayed.
Are home remedies safe for yellow teeth?
Be cautious. Cleveland Clinic says some over-the-counter whitening products are safe but others can harm enamel, and recommends talking to a dentist first. The ADA advises against using baking soda pastes as part of daily brushing, and warns that whitening, including whitening toothpaste, can cause sensitivity to cold. It also recommends having whitening done by a dentist, hygienist or oral health therapist. Remember that whitening will not change the colour of existing crowns, veneers or white fillings, according to the ADA.
How can you stop teeth yellowing again?
- Brush twice a day for two minutes with a soft brush and fluoride toothpaste, and floss daily (Cleveland Clinic).
- Limit tea, coffee, cola and red wine, and rinse with water afterwards.
- Wait an hour before brushing after citrus, soft drink or lollies.
- Quit smoking.
- Keep regular cleans and exams.
When is yellowing a reason to see a dentist promptly?
Cleveland Clinic advises booking straight away if discolouration comes with pain, bad breath, bleeding gums or holes in the teeth, or if a single tooth suddenly changes colour, which often points to decay or injury. For cost and method comparisons, see our guides on teeth whitening in Australia and veneer costs.
Sources
- Cleveland Clinic, Tooth Discoloration
- Australian Dental Association, Teeth Whitening
- Cleveland Clinic, Dental Cleaning
- Colgate, Whitening Toothpaste 101
This article is general information and is not a substitute for advice from your own dentist.
