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John Greenwood
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Not who you're looking for? Others named John Greenwood: English politician · English cricketer (1851-1935) · American racing driver and engineer (1945-2015) · member of the Queensland Legislative Assembly
John Greenwood (May 17, 1760 – November 16, 1819) was an American fifer and dentist, serving as George Washington's personal dentist. He was responsible for designing Washington's famous dentures, which were not wood but carved from hippopotamus tusk. He invented the first known "dental foot engine" in 1790.
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