In 1997, Align Technology, today known as Invisalign, was born, thanks to the idea of Stanford University students Zia Chishti, Kelsey Wirth, Apostolos Lerios and Brian Freyburger. Chishti was at the orthodontist getting his braces removed, and afterwards was given a retainer to keep his teeth straight and from moving. When Zia received his retainer, he realized
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