Nerve pain one year after a crown is made If it can be retained, the crown will usually need to be removed, a root canal performed, and the tooth recrowned and restored. If it cannot be retained, it needs to be extracted. 1. Neuralgia after one year of dental crown is usually caused by pulpitis secondary to caries, or due to imperfect root canal treatment before restoration and incomplete control of apical periapical inflammation. 2. After detailed examination and clear diagnosis, if the tooth can be retained, the crown should be removed, root canal treatment should be carried out, and then re-crown restoration. If the tooth can no longer be retained, it needs to be extracted. A year after the crown nerve pain is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.