For dental, I pay out of pocket but use a discount card (Vital Savings by Aetna). The discount card basically lets you pay the discounted rate that the insurance companies have negotiated with the dentist, which can be significantly lower.
We are a diverse group here of 100+ countries. If you ask a generic question, you're going to get 100+ countries' worth of experiences. In a case like this, it's just not helpful to anyone to throw this question out to 100+ countries - what value is it to a Canadian what someone from Thailand pays for health insurance? Zero. What value is it to someone from England who has four kids and a spouse what a 20yr old American on his parents' insurance "pays"?
I wish this thread had been better. I'd love to know this information about my fellow USA HN'ers. Hopefully the next thread someone creates on this topic will be a bit more specific and we can have intelligent discussions.
If you want to do some comparisons for US, try http://www.ehealthinsurance.com/
In my case, I use my wife's health insurance from her job and don't bother buying it myself.If I had to, it would probably cost me at least $500 per month.
Have a spouse that can get good benefits.
That said: one thing that annoys me about the Australian private health market is how dumb shit I get bundled in my payment.
I don't want a bloody reiki rebate. I'd rather you refunded my MRIs, thanks ("not an outpatient service").
To provide info that might be useful on the assumption that you are American and that what you really want to know is how to best take care of your needs: New laws mean some Americans can get covered under their parent's healthcare plan up until age 26, even if married. This isn't necessarily free, but for some people it opens up additional opitions they wouldn't otherwise have.