National College Student Uses 3-D Printer To Fix His Crooked Teeth 6:28pm April 11, 2016 by Jon Kalish Technology U.S. Share URL copied to clipboard! Play Pause There was an error loading the media player. Copyright 2016 NPR. To see more, visit NPR. 300x250 Ad More All Things Considered Arts Director Lee Isaac Chung shares the inspirations behind 'Twisters' Angry Houston residents still want answers after Hurricane Beryl power failure by Stella Chavez 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate