The treatment of blackened tooth roots is as follows: 1. First of all, it is simply blackened in terms of color. Clinically, people often come in and ask if the tooth root discoloration is bad and if it needs to be filled. As a result, clinical examination reveals that the tooth is still hard and basically no cavity exists, which is due to simple pigmentation. The pigment is due to some position which is not easy to brush when brushing teeth, and the dirty things will slowly harden after a long time, then it will start to discolor, this kind of teeth is simply black, and the pigment can be washed off by scaling; 2, if the examination finds that there is indeed a cavity formation, which is clinically said to have caries formation, this time it is necessary to polish off the blackened place with a turning needle, and then fill it with resin; 3, if it is an elderly person The blackened bacteria has been destroyed to a deep level over time, and may have reached the pulp at this time, so this kind of root blackening needs to be done after root canal treatment and then piling to fill it up again, or doing crown protection.