Wisdom teeth become black and rot out of the hole is generally due to caries caused by dental caries, treatment can choose restorative treatment or tooth extraction, specific as follows. 1. Restorative treatment: if the wisdom teeth are in normal position and have no adverse effect on the surrounding hard and soft tissues, then after removing the decayed decayed material, use composite resin to fill and repair the caries, and for the over-sized caries, it can be repaired by inlay repair or full crown repair. 2. Tooth extraction: If wisdom teeth are blocked or lead to recurrent pericoronitis, caries of neighboring teeth, alveolar bone resorption, etc., they should be extracted to prevent the development of the disease. It is recommended to go to the hospital in time, with the help of doctors for targeted treatment.