In general, the process of burning the nerve wire does not hurt, the so-called burning nerve wire, generally called pulp extraction or pulp inactivation, clinically there are a variety of methods to deal with, as follows: 1, chronic inactivation method: the chronic inactivator is placed in the pulp, so that the corresponding pulp gradually necrosis, this method will not cause tooth pain. 2, direct pulp extraction: in this operation, will be carried out under pre-anesthesia operation Therefore, with the current medical conditions and medical technology, there is no need to worry because there is no significant pain in burning the nerve line.