Your teeth may need whitening if they are discoloured. Reasons for tooth discolouration can be many, including:
- Extrinsic discolouration: From particular food and drinks like coffee, tea, or certain foods (e.g. red wine, curry, etc.) or smoking;
- Intrinsic discolouration: Changes to the health of the pulp within your tooth (e.g. due to trauma, tooth decay, consumption of tetracycline antibiotics at a young age);
- Your dental history (e.g. fillings, crowns);
- Certain medical conditions and medications;
- Developmental tooth abnormalities.
