Why Are My Teeth Yellow? Causes and Solutions
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Yellow teeth are more common than white ones
Natural tooth colour ranges from light yellow to light grey. The bright white teeth you see on social media are almost always the result of cosmetic treatment — not genetics or brushing harder. Understanding why teeth change colour helps you choose the right solution.
Extrinsic staining (surface stains)
Surface stains affect the outer enamel and are caused by:
- Coffee and tea — the most common culprit. Tannins bind to enamel.
- Red wine — chromogens and tannins combine for deep staining.
- Smoking — tar and nicotine cause yellow-brown staining that penetrates enamel over time.
- Curry, turmeric, and soy sauce — intensely pigmented foods.
- Poor oral hygiene — plaque and tartar build-up creates a yellow film.
Solution: A professional scale and polish removes most surface stains. Professional whitening (from 195 pounds) addresses deeper extrinsic staining.
Intrinsic staining (inside the tooth)
Stains within the tooth structure are caused by:
- Ageing — enamel thins over time, revealing the naturally yellow dentine underneath. This is the most common cause of yellowing in adults over 40.
- Tetracycline antibiotics — if taken during childhood (when teeth are developing), these cause grey-brown banding.
- Fluorosis — excessive fluoride during enamel development causes white or brown spots.
- Dental trauma — a damaged nerve can cause a tooth to darken.
- Root canal treatment — treated teeth can gradually darken.
Solution: Professional whitening works for age-related yellowing and mild intrinsic stains. Severe intrinsic staining may require veneers or composite bonding.
What does NOT work
- Whitening toothpaste — removes surface stains only. Cannot change the actual colour of your teeth.
- Charcoal toothpaste — the BDA advises against it. Abrasive, can damage enamel, and no evidence it whitens.
- Baking soda — mildly abrasive. Removes some surface stains but does not change intrinsic colour.
- Oil pulling — no scientific evidence it whitens teeth.
For the evidence-based comparison: Professional whitening vs shop-bought. For all cosmetic options: Cosmetic dentistry guide.
At Parish Dental, whitening consultations help you understand which approach will work for your specific discolouration. Call 0113 263 8509 or book online.
Frequently asked questions
Are you accepting new patients?
Yes. Parish Dental Practice in Armley, Leeds accepts new NHS and private patients. Call 0113 263 8509 or book online.
How much does NHS dental treatment cost?
NHS Band 1 (check-ups): 26.80 pounds. Band 2 (fillings, extractions): 73.50 pounds. Band 3 (crowns, dentures): 319.10 pounds. Free for under 18s and qualifying patients. Read: NHS charges explained.
Written by Parish Dental Team
Our team of dental professionals in Armley, Leeds, share practical advice and guidance to help you make informed decisions about your oral health.
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