"Our [system] will straighten the teeth in incremental steps," said Dan Knoch, who founded iPrint 3D. In the years since, Knoch has adopted ever-more-sophisticated technology — building 3D printers, scanners and software in-house — to fulfill his vision of straightening peoples' teeth.

There’s no pain or discomfort, and young patients find it “cool” to watch their teeth begin to take shape in 3D on the computer screen. A trip to the orthodontist has suddenly become a high-tech, almost futuristic, experience. In this specific case, taking digital impressions instead of traditional impressions.