Since my 2yo is having tooth trouble (knocked her front tooth through her lip and pushed it back, going to the dentist tomorrow) I've been thinking about teeth.
I lost my first tooth (one of the center bottom ones) when I was 4, playing in a closet with friends (it was a little loose, wasn't bumped or anything, just randomly fell out of my mouth and freaked me out). My next one fell out about a month later, and the cycle continued.
Having a 4yo DD.. I'm naturally curious if these things are hereditary Google isn't very helpful.