3-D printing goes from sci-fi fantasy to reality

SAN MATEO, Calif. (AP) -- Invisalign, a San Jose company, uses 3-D printing to make each mouthful of customized, transparent braces. Mackenzies Chocolates, a confectioner in Santa Cruz, uses a 3-D printer to pump out chocolate molds. And earlier this year, Cornell University researchers used a 3-D printer, along with injections of a special collagen gel, to create a human-shaped ear....

Read the whole article on AP Science

More from AP Science