George Washington's teeth
American President George Washington’s teeth began to fall out before he reached the age of thirty, and he eventually lost them all. During his life, he had at least four sets of dentures made to replace them. Natural teeth. In 1756, when Washington was 24 years old, a dentist pulled his first tooth. According to his diary, he paid 5 shillings to a "Doctor Watson" for the removal. His diary also regularly mentioned troubles such as aching teeth and lost teeth. John Adams said that Washington attributed the loss of his teeth to using them  to crack walnuts, but modern historians have suggested that mercury(I) chloride (calomel), which Washington was given to treat smallpox, probably contributed to the loss. On April 30, 1789, the day of his first presidential inauguration, although he had mostly dentures, he had only one remaining natural tooth, a premolar. During that same year, he began wearing full dentures. Washington's last tooth was given as a gift and keepsake to his dentist John Greenwood. Dentures. During his life, Washington had four sets of dentures. He began wearing partial dentures by 1781. Despite many people believing they were made of wood , they contained no wood, and may have been made of teeth extracted from slaves, as well as other materials such as hippopotamus ivory, brass and gold. The dentures had metal fasteners, springs to force them open, as well as bolts to keep them together. Records at Mount Vernon show that Washington bought teeth from slaves. The poor in the Western world had been selling teeth as a means of making money since the Middle Ages, and these teeth would be sold as dentures or implants to those of financial means. During the Revolution, French dentist Jean Pierre Le Moyer provided  services in tooth transplantation. In May of 1784, Washington paid several unnamed slaves 122 shillings for a total of nine teeth to be implanted by a French doctor, who became a frequent guest on the plantation over the next few years. While it is unconfirmed that these purchased teeth were for Washington himself, his payment for them suggests that they were in fact for his use, as does a comment from a letter to his wartime clerk Richard Varick: "I confess I have been staggered in my belief in the efficacy of transplantion," he wrote. Washington used teeth sourced from  slaves to improve his appearance, a subject of frequent discomfort to him. He took the oath of office while wearing a special set of dentures made from ivory, brass and gold built for him by dentist John Greenwood. According to his diaries, Washington's dentures disfigured his mouth and often caused him pain, for which he took laudanum. Washington once wrote that his lips would "bulge" in an unnatural way. This distortion is noticeable on his image on the one-dollar bill, an image taken from the Athenaeum Portrait, an unfinished painting from 1796 by Gilbert Stuart. He once wrote  to his dentist, Greenwood, to avoid modifying the dentures "which will, in the least degree force the lips out more than now do, as it does this too much already." Apart from the disfiguration caused by the dentures, the distress may also be apparent in many of the portraits painted while he was still in office. He spent constant effort maintaining his dentures, and often had them shipped to Greenwood, for maintenance. The mistaken belief that Washington's dentures were wooden was widely accepted by 19th century historians and appeared as fact in school textbooks until well into the 20th  century. The possible origin of this myth is that ivory teeth quickly became stained and may have had the appearance of wood to observers. A letter from Greenwood to Washington in 1798 advised more thorough cleaning since: "the sett you sent me from Philadelphia...was very black...Port wine being sower takes of[f] all the polish". The only existing complete set of Washington's dentures are owned by the Mount Vernon Ladies' Association, who own and operate George Washington's estate in Fairfax County, Virginia. There is another complete, original, lower jaw denture dated 1795 at the National Museum of  Dentistry, Baltimore, Maryland. Dentists. At least three of Washington's dentists are identified. His diary mentions "Doctor Watson", the dentist who pulled his first tooth. His personal dentist and friend was Jean-Pierre Le Mayeur. John Greenwood of New York City made and maintained his dentures.