To give you an idea of the savings by going to treat you in Hungary, here's an explanatory table.
The price of each treatment is VAT, including all medical expenses directly linked to the gesture.
Reimbursement of dental care by health insurance is really not at the level of contributions. It is recognized, with the glasses, it is the major weakness of the French system.
The rate under agreement by the social security system for a dental crown is 107,48 euros, reimbursement by the Health insurance thus amounts to EUR 75,23. The actual rate applied by dentists may vary between 200 and 750 euros.