On loan from The New York Academy of Medicine, the denture was the first of several dentures that John Greenwood made for Washington and is dated 1789, the year that Washington took his oath of office in New York City. The denture is engraved with: Under jaw. This is Great Washington’s teeth by J. Greenwood. First one made by J. Greenwood, Year 1789.The Mount Vernon website notes that there is no extra cost to see these teeth.
Carved from hippopotamus ivory, the denture contains real human teeth fixed in the ivory by means of brass screws. The denture, which was anchored on the one remaining tooth in Washington’s mouth, has a hole which fit snugly around the tooth and probably contributed to the loosening and eventual loss of that tooth.