Sign up to your local dental school for free dental work.

In my city you can sign up to the dental school and get free treatment from dental students in their final year. Granted it took 8 months for them to contact me but since they invited me for an assessment a couple of weeks ago, I’ve already had a checkup and X-rays done and I’m getting a free scale and polish and fillings later this week. The only caveat is that the appointments can be significantly longer than going to a normal dentists (due to the dental students still being trained) but everything they do is second checked by a qualified dentist.