Causes of discoloured teeth
1. External factors
causing staining of the outer layer of the tooth and include smoking, beverages such as coffee, wine, cola or foods such as apples or potatoes.
2. Internal factors
causing staining of the outer layer of the tooth and include smoking, beverages such as coffee, wine, cola or foods such as apples or potatoes.
1. Excessive exposure of fluoride during the childhood
2. Using tetracycline antibiotic
3. Dental trauma in a young child causing damage to the developing permanent tooth
4. Systemic diseases or illnesses during tooth formation