How long does it take to kill the nerve?

The root canal therapy is called tooth-killing nerve therapy. The treatment time and fee need to be judged according to the patient's tooth condition. If the patient's tooth is an anterior tooth, due to the small number of internal root canals, it usually costs about 300 yuan, and the process takes about half an hour. If the patient's tooth is a posterior molar, the root canal is more, the charge may be about 1,500 yuan, and the time may take more than one hour.