A tooth with a cavity that needs to be filled usually costs$120 per tooth, which means that the tooth itself is simple decay and no pulp lesion is involved. In contrast, many cases of cavities in teeth will have involved pulpal lesions, and it is then necessary to do pulpal treatment with a perfect root canal. The price of root canal treatment is higher and is charged according to the number of root canals of the tooth, usually around$300 for a single root canal for anterior teeth, while for posterior teeth, 3-4 root canals are possible. Therefore, if a tooth has a cavity to be filled, it also needs to be examined by a clinical dentist, or after the necessary x-ray examination to determine the method of filling the tooth, and only after that the charge is determined.