Pucks to the mouth. Teeth flying to the ice. Hockey players aren't known for their perfect smiles. But have you ever wondered who exactly comes to the rescue mid-game, after a player takes a slapshot to the teeth, and gets him back on the ice? Enter the world of NHL dentists - the brave heroes who put hockey players' notorious grins back together. ESPN writer Dave Fleming takes Mina Kimes on a gory, grueling journey of mouth molds, chiclets, emergency surgery, and more tales of dental hockey horror.