Yeah, I'm 19 years old and for quite some time my left lateral incisor hasn't like... fallen out.

It's not that I particularly want it to fall out or anything after all, I'd prefer to not have a rather distracting gap in my teeth every time I smile. I'm just wondering how normal this is, or if it's a sign of any medical condition.

I assume it's nothing really life threatening or awful, I'm merely curious as to why this baby tooth hasn't fallen out, and what are the odds of something like this is all...