Oh geez, I had one of my incisors grow in all small and deformed (which had to be pulled) and the other never grow at all so I had braces on forever to close the gaps. Took forever. They also filed down my canines so it wouldn't look funny. I've also had all my wisdom teeth pulled. So I'm, like, 6 teeth sort of a full mouth. Oh, also, one of my front teeth has a chip in it so make that 6 and a quarter teeth.
But I've only had one cavity in my life, which is great because I only take moderately good care of my teeth.