The child’s tooth touched a black, usually can not be self-healing. Because the tooth is touched after the black color, most consider that the current pulp has been affected, may have occurred necrosis, in this case usually can not be self-healing, the need for timely treatment and repair, so as not to cause periapical inflammation. If the tooth is black after being bumped, you can consider doing root canal treatment, including local rinsing, local medication, postoperative sealing of the canal, etc., which can effectively protect the tooth, reduce tooth damage, and prevent tooth loss. If the tooth has obvious loosening, in the case of affecting normal chewing, you can choose fixed treatment. If you find that your child’s teeth are black in color after touching, you should consult the doctor in time and understand the situation through professional examination before targeted treatment. If it is a milk tooth, in the case of no retention value, can also be directly removed.