There are fewer better smilers than One Directioner, Harry Styles, who flaunts an impressively maintained set of teeth. Just look at that smile! Not a tooth out of place, not a single visible spot of plaque. And is it just us, or does it actually look like you can see every tooth in his mouth when he smiles? Seriously, that's an ear-to-ear smile. It's hypnotizing really. It just goes to show what a difference a nice set of dentals can make for a guy.