Amalgam fillings and the administration of nitrous oxide became standard dental procedures largely due to the work of Thomas W. Evans. Born on Spruce Street in 1823, this American practitioner established a medical career in Paris, where he performed procedures for numerous heads of state, including Napoleon III, effectively altering the trajectory of nineteenth-century dental surgery.
Medical Practice and Innovation
Evans moved beyond traditional methods to integrate modern techniques into his practice. His focus on nitrous oxide and the application of amalgam fillings positioned him at the forefront of his field. His professional contributions earned him international recognition, including the titles of Officer of the Order of the Oak Crown and Officer of the Legion of Honour, as well as the Grand Croix of the Légion d'honneur.
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Outside his clinical work, Evans participated in the cultural and intellectual life of Paris. In 1868, he supported the establishment of the American Register, the inaugural American newspaper published in the city. By 1884, he ventured into publishing by releasing the first English translation of the memoirs of Heinrich Heine, for which he authored the introduction. He also supported the arts by commissioning the American sculptor Cyrus Dallin to create an equestrian statue of the Marquis de Lafayette in 1889, which appeared at the Paris Exhibition that same year.
Historical Involvement and Legacy
Evans maintained high-level political connections, most notably during the fallout of the Battle of Sedan in 1870. He assisted Empress Eugénie, along with Louis Joseph Benton, the grandson of Joseph Bonaparte, in fleeing Paris. Evans resided in the city for many years until his death in 1897 at avenue Foch. His estate provided the land and capital necessary to establish what developed into the University of Pennsylvania School of Dental Medicine. He was eventually buried at The Woodlands in Philadelphia.
Fast facts
- Born: 1823, Spruce Street
- Died: 1897, avenue Foch
- Profession: Dentist
- Citizenship: United States
- Burial site: The Woodlands
- Notable honor: Grand Croix of the Légion d'honneur
Questions readers ask
What specific dental techniques did Thomas W. Evans promote?
He is recognized for popularizing the use of nitrous oxide and amalgam fillings, both of which became standard practices.
How did his estate contribute to medical education?
In his will, Evans provided the funding and land required to found the University of Pennsylvania School of Dental Medicine.
Achievements
- Officer of the Legion of Honour
- Officer of the Order of the Oak Crown



