The cost of dental root canal treatment consists of the number of root canals and the crown restoration. The cost of treatment varies greatly from region to region. The cost of treatment for each root canal is about $500. 1. Front teeth usually have single root canals or double root canals. Posterior teeth usually have 2 to 4 root canals. The number of root canals can usually be determined by taking X-rays before the operation, but sometimes new root canals may be found during the root canal treatment because of the different angles of the root canals and root bifurcation, etc. 2. After root canal treatment, the tooth loses its pulp supply and is brittle and prone to cracking. Front teeth need full crown restoration to maintain the normal function and appearance of the teeth. The back teeth, which are mainly used for grinding fine food, are brittle and easy to break, and usually need crowns to protect them. The price of a crown is closely related to the material chosen and can range from a few thousand dollars. During root canal treatment, there may be transient pain, do not be nervous at this time, most of the pain will be gradually relieved, if the pain is severe, you need to seek medical attention as soon as possible. It is recommended to go to the hospital under the guidance of the doctor to choose a suitable treatment plan.