Children’s teeth black may be related to pigmentation, caries, calculus and other factors, can be cleaned through the oral cavity, oral anti-inflammatory pain medication, scaling for treatment. 1. Hyperpigmentation: If children often eat some drinks and food containing pigment, it will cause hyperpigmentation and thus the phenomenon of black teeth. It can be improved by cleaning the mouth, such as brushing the teeth in the morning and evening and rinsing the mouth after meals. 2. Dental caries: Dental caries is commonly known as insect teeth or tooth decay, in the caries appear, may lead to black teeth. Generally do not need to take medication, if the tooth decay is more serious, hot and cold stimulation of pain, children can be treated by oral anti-inflammatory pain medications, such as ibuprofen extended-release gel, allergic to drug ingredients with caution. 3. dental calculus: dental calculus is attached to the surface of the teeth calcified and partially calcified material, in fact, is also attributed to a kind of dental stains, dental calculus may also appear in children’s teeth black phenomenon. In cases where there is a clear presence of localized tartar attachment in children, tartar can be removed through scaling. When a child’s teeth are blackened, it is recommended to go to a regular dental hospital in time to find out the cause of the disease, and then follow the doctor’s instructions to use medication, do not use medication privately. The above medications should be taken under the guidance of a doctor.