dr. guy deaton has been an orthodontist for decades. he thought he'd seen it all until he used this. >> i had no idea. >> the teenager in this youtube video which has racked up more than a views isn't showing us hair bands for a fashion video. she's showing us how she uses hair bands to make home made braces. >> going to take it and i'm going to tie it. >> she's using hair bands and she doesn't understand that if she's doing it inappropriately she could lose her two front teeth. >>reporter: this is one of countless videos of teens and 'tweens showing various ways they've created so-called dyi braces tropicaling to fix teeth >> in one video i saw, they used a paper clip and super glue. >> for dr. deaton the simple youtube search stood into stuff nightmares are made of. >> i am so horrifyied and fearfl that they are going to do harm to themselves. >>reporter: after researching diy braces gone wrong, he has reason to be fearful. in addition to your teeth falling out, diy braces can caus in some cases disfiguration that is simply too graphi