Dark, Discoloured and Stained Teeth

What causes discoloured, stained teeth?

Stained and discoloured teeth are widespread and can lower self-confidence. Discolouration happens either externally from the enamel or internally from within the tooth. Knowing these causes enhances awareness of why teeth may change colour.

Common causes include the following:

  • Teeth may turn yellow or discoloured if the enamel of the tooth is stained. This is usually done by food or drinks such as wine or coffee, or by smoking.
  • Teeth may also darken after root canal treatment, caused by the various toxins that exist during the infectious process.
  • Inadequate brushing and flossing habits mean that plaque is not removed properly, and stain-producing substances can cause tooth stains.
  • As you age, the outer layer of enamel on your teeth wears away, revealing the dentin's natural, yellow colour. Over the years, more stains and tartar have caused them to darken and discolour.
  • Some lucky individuals have naturally brighter and/or thicker enamel than others due to genetics.
  • Chemotherapy and radiation have been known to cause discolouration of the teeth.
  • Discolouration of the teeth can occur due to excessive exposure to fluoride or tetracycline antibiotics.
  • Teeth may also discolour if there is a problem with the pulp of the tooth (the innermost layer containing the nerves and blood vessels).

Dark, Discoloured and Stained Teeth

In this example below, we can see that the two upper front teeth are discoloured, creating an unaesthetic appearance for this individual.

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What can be done?

Stained and discoloured teeth may be treated with teeth whitening or veneers. Dr Chodree will provide personalised advice during your consultation to help you feel supported and confident in your options.

In some cases, internal bleaching may help remove discolouration, which can reassure you about less invasive options. Depending on your specific situation, a veneer, crown, or root canal therapy might be recommended, ensuring you understand all available choices.

In other cases, teeth whitening can be considered. Dr Chodree offers two main methods of professional dental whitening, tray whitening and in-office whitening, where in-office teeth bleaching is the most efficient means of teeth whitening. Your dentist can give you more detailed information and help you decide which method is more suitable for you and your teeth, ensuring you feel supported and confident in your choice.