Learn more If you're anything like me, you had expensive orthodontics as a child and proceeded to lose your retainers shortly after, so your teeth have ... started slipping behind the others.

Traditional braces are too expensive. You wore braces as a kid but can't find your retainers anymore so your teeth have shifted again. Taking the time to find and regularly visit an orthodontist ...

Harmful habits aside, here's a list of some other notable celebrity tooth features and the medical reasons behind them ... of her upper teeth closed, because she had her retainer taken out ...