Dental fees vary greatly based on what is done and your location. If you get composite fillings, the cost for two fillings might only be $200-600, so figure on about $300-400 or so average unless you live in high cost of living city, or the fillings are very large. If the fillings are large and on back teeth, you might want to get inlays or onlays even though they are very expensive. Two porcelain inlays or onlays might cost $1,000- 3,500

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