Meh over a large population that is not actually true. Some people just don't make that much salvia for example and get dental problems way more than others, even with identical dental care behaviors and diet of someone with pretty much no dental problems.
Also it prevents bigger issues in the future that a socialized healthcare system would have to pay for. Cheap socialized dental care basics I think is a net positive for a society in general. The poor will be more productive and create more tax revenue than the amount of money put into it.
