Buggs,
Before I got a bridge for my front teeth, I had a partial plate and that happened to me too. It's awful! Luckily it only happened a few times. Humiliating.
Weird thought for today (it does tie in, I swear): I lost 3 teeth in a fight a billion years ago. At first, I was really pissed that happened but now im kinda glad. I had a Letterman gap before that and my teeth are perfect now. I'd like to find and thank the guy.