Dark spots on teeth may be related to pigmentation or food residue manifested by the teeth, or they may be caused by caries or calculus.
1. Pigmentation or food residues: For example, drinking a lot of coffee, consuming chocolate or smoking for a long time may lead to staining of the teeth over time, thus causing brown spots on the teeth. It may also be due to a lack of attention to oral hygiene, resulting in the accumulation of food debris, causing black spots on the teeth.
2. Dental caries: Usually due to dietary factors, bacterial infections, host factors, etc., the hard tissues of the teeth are damaged, which may cause black spots on the teeth, and may also be accompanied by food impaction, toothache and other symptoms.
3. Calculus: usually due to food residues left on the surface of the crown for a long time, leading to the accumulation of bacteria, thus forming plaque, and gradually mineralization occurs inside, forming a mineralized material, which may show black spots on the teeth, and may be accompanied by bad breath, bleeding gums and other manifestations.
Black spots on teeth may also be caused by other reasons. After eliminating physiological factors, you should consult a doctor as soon as possible to clarify the cause and then be guided by the doctor for treatment.