I've never had a tooth knocked out or loose, but I've had... probably 25 cavities in my lifetime, 11 found last year. Oral hygiene wasn't a big thing in my family. It's better now, but I'd probably be in searing pain if my dad's work hadn't covered the filling cost - and even then, I had to pay 300$ out of pocket for the last two (no one bothered to mention that there was a yearly limit on the dental plan per person).
I twisted a tooth out when I was ten or so. The new molar is sideways now lol but all my teeth are straight and lined, and I've yet to get my wisdom teeth... I can feel'em though. We'll see how that goes.