I had braces twice because the first orthodontic company to do them sucked and I went months without getting them tightened because they wouldn't answer the phone. We seriously went over there a few times and watched the phone ring. Nobody even looked at it, so it wasn't just us.
The second orthodontist was good, but he blew one of my teeth in half. No joke. After removing my braces he started grinding off the glue with this hideous medieval device. It was like pliers, but curved. He squeezed the edges of my teeth with it until the glue came off. A bit of tooth came off with it, leaving this big ugly brown spot on one of my teeth that my brother kept saying was food. Retard. It did teach me a great way to shut someone up. If someone's talking about something you don't like (For instance, telling someone else an embarrassing story about you) just tell them there's something in their teeth. Bam, they won't talk again for the rest of the night.
Anyway. Later the rest of that cavity came out, so I had a clean hole through my tooth. A short while later, some more came off, so now I have this sharp, ugly fang in the front of my mouth. It's one of my incisors, and it's completely broken in half vertically.