Black stains on the inside of the teeth may be caused by pigmentation, calculus and caries.
1. Hyperpigmentation: If you often smoke or eat dark-colored food, and do not brush your teeth in time after eating, it may lead to hyperpigmentation on the inside of the teeth, and black stains will appear locally.
2. Dental calculus: Dental calculus is considered to be caused by plaque and soft dirt adhering to the surface of the teeth, if the localized dirt is not treated in time, yellowish-white, brownish-black dental calculus may appear. Therefore, patients with calculus on the inside of the teeth will have the symptom of black scale.
3. Caries: caries will lead to the destruction of tooth enamel, tooth decay and necrosis. If caries occurs on the inside of the teeth, it will be manifested as black stains on the inside of the teeth.
It is recommended that patients with black stains on the inside of the teeth need to consult a doctor in a timely manner, the doctor will choose targeted measures according to the cause of black teeth treatment.