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What causes a discoloured tooth?


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  • Decay.
  • Trauma.
  • Gum recession exposing a dark root.
  • A dead or receded nerve in the tooth.
  • An existing root canal treatment.
  • An old silver filling that has leeched gray color into the tooth.
  • An old composite filling that is staining underneath the edges or has discolored over time.
  • Tooth wear leading to the exposure of the darker layer of tooth under the enamel.
  • Stain from food or beverages.