John Greenwood (dentist), Date of Birth, Date of Death
TweetJohn Greenwood (dentist)
American fifer and dentist
Date of Birth: 
About John Greenwood (dentist)
- 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.Greenwood served as a fifer during the American Revolutionary War at sixteen years of age.
- He served twenty months in Captain Theodore Bliss's company of the 26th Massachusetts Regiment, playing the fife in the Continental Army from 1775 to 1778.
- He was the grandson of Isaac Greenwood, a mathematics professor at Harvard, and son of Isaac Greenwood, the first native-born American dentist. A letter from John Greenwood to Lt.
- General George Washington on his denture charges, dated 1799, is in the A.D.
- Black History of Dentistry Collection at Northwestern University.
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