The cost of tooth decay filling is usually related to the material, the way of restoration, the city you are in, the level of the hospital and so on, and cannot be generalized. 1. The cost of tooth decay filling is affected by different factors, if the patient’s cavity is relatively small, it can be directly filled with resin, combined with the different materials chosen by the patient, the cost also varies. If you choose ordinary resin, such as 3M 250 or 350, the cost of filling a tooth is about 200-300 dollars. 2. If you choose a resin with a higher hardness, such as 3M’s P60 or Heraeus’ Super Drill, the cost of a filling is around $500-600 per tooth. If the patient suffers from tooth decay with a large area of loss and has no problem with tooth vitality, he or she may consider inlay restoration, which costs around $2,000-$3,000 for one tooth restoration. Therefore, the cost of a cavity filling is related to multiple factors, and it is recommended to consult with the relevant local dental organization to have a relatively accurate price range to refer to.