Darkening of the gaps between the teeth may be caused by physiological factors such as excessive smoking and tea drinking, or may be caused by diseases such as dental calculus and dental fluorosis.
1. Physiological factors: If you smoke for a long time, drink tea or black coffee, it may lead to pigmentation and darkening of the gaps between the teeth. If there are no other uncomfortable symptoms, it is a normal phenomenon.
2. Dental calculus: Dental calculus may be caused by improper diet, mineral deposition, plaque, soft tartar and other factors. Patients will mainly appear in the root surface under the gum margin, showing black or brown, and accompanied by bad breath, gums red, swollen, bleeding and other symptoms.
3. Dental fluorosis: Dental fluorosis may be caused by high intake of fluorine during the period of tooth development. Patients will appear on the enamel of different degrees of coloring changes, serious cases can appear dark brown changes, and even covered with most of the enamel. Patients may experience darkening of the crevices of the teeth.
There are many reasons for the darkening of the gaps in the teeth, and it is recommended that the patient find out the cause of the disease in a timely manner.