For much of his racing career, he was sponsored by dental product companies including Crest and Water Pik.
Miller won the championship by virtue of being the only driver to compete in every race in a B-series car.
Miller was involved in a 13-car crash, and suffered injuries that ended his racing career.
"Reflections on the Driving Career of Dr. Jack Miller, the Racing Dentist - http://sopwithmotorsports.com/blog/indycar/item/133-indycar-remembering-dr-jack-miller-the-racing-dentist.html
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