The blackness of the teeth next to the flesh mainly refers to the gum part of the teeth, usually there may be dental calculus, pigmentation, dental damage and other reasons, symptomatic treatment can be restored. 1, dental calculus: mainly due to long-term non-cleaning of the teeth resulting in plaque mineralization and formation, sometimes you will see the color black. Patients are recommended to go to the stomatology department of the hospital for scaling and cleaning; 2, pigment accumulation: it may be due to the patient’s long-term drinking carbonated beverages, coffee, smoking, betel nut chewing and other behaviors that lead to black teeth next to the flesh, patients can also take the method of scaling to improve, usually should pay attention to more brushing, for the above behavior more control; 3, tooth damage: because of dental caries and other reasons, resulting in tooth loss, will also appear teeth The situation that the place next to the flesh is black, it is suggested that the patient should go to the hospital or oral clinic for treatment such as tooth filling in time. It is suggested that patients should pay attention to keep oral hygiene in daily life, eat more fresh vegetables and fruits, go to the hospital regularly for scaling and develop good living habits.