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Thank you. From Wondry, I'm David Brown, and this is Business Wars Daily on this Wednesday, December 20th.

Those of us of a certain age

who required orthodontic care to get straight teeth

had but one option,

a mouthful of metal brackets and wires.

Then about a quarter century ago,

a young Stanford University MBA student

came up with an idea for clear plastic dental aligners

that fit over the teeth and could be removed.

His Invisaline product revolutionized the orthodonics industry and gave people more options to get

straighter teeth. Today, Invisaline is still available through Invisaline trained dentists and

...