Silly me - I could have sworn he was describing the Labor Party. Bill Ireland, Pymble. I'm sorry we lost, but it wasn't because I was taking a long and costly pre-retirement holiday. No proof is supplied. Even if his claim were correct, it would not support user-pays for dentistry.
Income distribution is generally unfair to the poor.
Given this, charging all patients the same price for the same dental treatment is unjust. User-pays for health care should be rejected. It is more difficult or costly for some people than others to behave prudently. Such people are disproportionately represented in low-income groups. There is only a partial link between risky actions and unhealthy outcomes.