A new study shows that white teeth make you look healthier, more attractive, and can even give you an edge in the job market. Gleaming white teeth are basically the crown jewel of your face. The bad news is that coffee and wine are just as appealing as ever, making it harder to keep your pearly whites looking … well, pearly. The good news? We got the scoop on the best new whitening treatments and devices, so you can have your coffee and keep your teeth white too.