The cost of dentures will depend on the aesthetic or funktional characteristics. Therefore it is not possible to make general statements. A crown may cost 120 € up to 400 € - depending on the design, material, or whether it is attached to an implant.
The dentist’s fee has to be added, on the other hand the refund of your health insurance can be considered.
Please ask your dentist for a specific calculation, taking account of these factors.