average cost of a filling for a cavity can vary depending on several factors such as the location of the dental office, the type of filling material used, and the severity of the cavity. On average, the cost of a filling for a cavity can range from $100 to $300 per tooth.

For a silver amalgam filling, the cost is typically lower, ranging from $100 to $200 per tooth. For a tooth-colored composite filling, the cost is usually higher, ranging from $150 to $300 per tooth. In some cases, if the cavity is more severe and requires a larger filling or additional procedures such as a root canal, the cost can be higher.

It is important to note that dental insurance may cover a portion of the cost of a filling, so it is recommended to check with your insurance provider to understand your coverage. Additionally, some dental offices may offer payment plans or financing options to help make the cost of a filling more manageable.

Overall, the average cost of a filling for a cavity is around $100 to $300 per tooth, but this can vary based on individual circumstances and the type of filling material used.