When George Washington became the first president of the U.S. he had only one remaining tooth – a lower left premolar tooth. Such we learn from a new biography written by Ron Chernow. The author conjectures about the implications of this single remaining tooth: Washington was reticent in his later years – did his dental problems inhibit his speaking? Did it affect his attitude toward slavery – he acquired slaves’ teeth, maybe to use in his dentures. You can even pay a visit to see this single tooth, as Mr. Chernow did in researching his very thorough biography. The tooth is kept at a medical library (hopefully in safety!).