Materials that may be used in dental fillings include dental amalgam, composite resin, glass ionomers, gold, and ceramic. The cost of dental fillings ranges from around $75 to $200 per tooth ($75 to $145 for metal fillings and $150 to $200 for composite resin fillings).With dental insurance, gold fillings typically run between $10 and $50, while ceramic fillings range between $40 and $100.ost dental insurance plans cover the cost of dental amalgam and gold fillings, since they are used for functional, rather than exclusively cosmetic, purposes. Many plans cover the cost of composites up to the price of amalgam fillings, especially if an amalgam filling is chipped or cracked.