National Museum of Dentistry

Americans may have no identity, but they do have wonderful teeth.
~Jean Baudrillard

There is a National Museum of Dentistry.  It is affiliated with the Smithsonian Institution and boasts such exhibits as Queen Victoria's dental instruments, and an historic display of toothbrushes.  The museum also displays George Washington's dentures (made not of wood, but of hippopotamus ivory).

Note: The Dentistry Museum is located in Baltimore.

Something else I learned: George Washington had only 1 tooth of his own at the time of his inauguration as President.