Teeth black with holes are mainly caused by caries such as dental caries, commonly used treatments include filling, making inlays or full crown restoration. 1. Etiology: in the early stage of lesions, caries tooth hard tissue will occur demineralization, enamel pigmentation, part of the decayed tissue is brown, dark brown or black, dentin is destroyed to form cavities. 2.Treatment (1) Filling: When the area of blackened teeth is small and the caries cavity is relatively shallow, a grinding drill can be used to remove the discolored dentin, prepare the cavity shape and fill it with composite resin or glass ionomer cementum. (2) Removal of decay by spatula: When the cavity is large and deep, it is recommended to remove large pieces of decay from the tooth with a spatula, remove the discolored dentin by grinding with a low-speed ball drill, and fill the cavity with a calcium hydroxide cushion. (3) Root canal treatment for fabrication of inlay or full crown restoration: If the cavity has affected the pulp or the pulp has been exposed, root canal treatment or full crown restoration of the tooth is required. You should pay attention to oral hygiene and brush your teeth regularly. If the above symptoms occur, it is recommended to go to the hospital in time for early and regular treatment.