Kind of thought about this, but not so far as the dentist.
I can deal with it, but that is going to be the most painful thing.
Just reesolved the dental issue by taking the final solution. Making replacement dentures could be a problem. Society is necessary. A small town is preferable to a wilderness.
We've slowly built up our stock of whole grains and bought a good hand grain mill. They are expensive though, about $300. I bought one of the expensive ones after buying a cheap one. The cheaper ones only grind the grain up enough to where it's more like cracked wheat than anything else.
One of the best books I've read on how to do this is, How to Survive the End of the World as We Know It: Tactics, Techniques, and Technologies for Uncertain Times
You can prevent a lot of dental problems using floss, proper brushing and black walnut tincture.