I haven’t had braces since ninth grade, but I still maintain one vestige of that painful period of orthodontia: a permanent retainer that’s fused to the back of my bottom front teeth. I try to be ...

Speak to anybody who had a 'train track' brace in the 1990s and you'll likely hear a familiar tale - namely, that the results didn't last beyond their youth. Not because the unsightly metal bonds didn ...