The treatment of pulpitis is usually root canal treatment. The fee for root canal treatment is determined by the number of root canals, and the fee for each root canal is about 300 RMB. For example, anterior teeth usually have a single root canal and the fee is about 300 RMB; if it is a premolar tooth, it is usually a double root canal and the cost of treatment is about 600 RMB; molar teeth usually have 3-4 root canals and the cost of root canal treatment is about 900-1200 RMB. During the root canal treatment, auxiliary instruments may be used, such as nickel-titanium files and root canal microscopes, which are additional charges. The additional charge for the root canal microscope is about $200, and the nickel-titanium files are about $55 per use.