I've never had any problems with my teeth, but I had to go in for the first part of what I think roughly translates from polish into 'Root Canal'.
I chipped a tooth and exposed the nerve, and drove down to the dentist yesterday, 40km from my house. She drills it, puts some sort of stuff to kill the nerve inside and patches me up, sends me on my way pain free.
I leave and start driving home, and my tooth starts hurting worse then anything I have ever felt. It was like having 100 testicles instead of 2, and getting kicked in all of them at once.
I had to go get novacaine injected otherwise I would have probably thrown myself off a bridge. I'm scared to eat anything other then yogurt now because I'm worried it will make it hurt again
Surprisingly though, after 15 years without going to a dentist because I'm scared shitless, I didn't have so much as one cavity or anything else wrong except that chipped tooth. Total cost for this dentist visit was 20PLN, or roughly $8CAD.