I took a header on a basketball court in high school and broke three of my teeth in half..the ends off the two front ones and the whole back half plus the tip of one on the left of them. My lip swelled to an inch in diameter and the dentist said he could do any work on me until the swelling went down and the impacted bone in my upper jaw healed (almost broke my upper jaw). So I got to walk around for a week with three ugly broken teeth right in the front of my mouth (not that many people looked past my lip). Then I went through about eight hours of dental work over the next year just to fix those teeth. Temporary bonding of all three while waiting to set an appointment for a permanent bond. The temporary bonding broke off, had to have it redone. Got the teeth permanently bonded, one front tooth chipped and the bonding on the left one fell off. Fixed the front one again, waited another month and had the left one crowned. I thought I was in the clear, but no! Six months later, the crowned tooth developed an abscess, producing a grape-sized bulge in the roof of my mouth. I had to wait four days to get that worked on and another month and a half before it was finished - I had three appointments, one to open the root and drain it (the dentist actually stuck a syringe into my hard palate to try to suck some crap out), one check-up, and one appointment to finish the root canal and close the hole that was left in my tooth for over a month.
Through all of this my jawbone never fully healed, so it would start throbbing at random and not stop for a week at a time. (the last time this happened was at the beginning of this summer.

)
At least I'm not afraid of dentists anymore.