Two Stanford MBAs imagined invisible braces — Invisalign turned the idea into digital dentistry
Zia Chishti and Kelsey Wirth founded Align Technology in 1997 around the idea that a sequence of clear removable aligners could straighten teeth without conventional metal braces. The concept depended on digital modelling and manufacturing: scan a patient’s teeth, plan movement in software and fabricate a series of slightly different plastic aligners.
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