I think it would depend on what sort of work you want done. Some types of dental procedures have more possibility of things going not as planned, resulting in weeks of after care needed. You would want to avoid having those done o/seas if you can.

Please note: for any people with low incomes, there has recently been a substantial boost of federal govt money into public dental services in every state, so there may be improved access to dental services in your area, worth checking out.