Digital scan of an engraving showing four images of a tooth key used in tooth extraction. The images are numbered 1 through 4. Digital scan produced for the exhibit "Bridging a Gap in our Historical Collections: The History of Dentistry Collection," in Spring 2004.
Image number 62, reproduced from Curt Proskauers Bildgeschichte der Zahnheilkunde (Pictorial history of dentistry). Image measures 23 x 18.5 cm. Image description reads: "The pelican was replaced by the ueberwurf, the latter in turn by the Turn-Key, first described by Etienne Bourdet, Paris, in 1757. The picture in the Goddard-Parker book shows clearly how the turn-key is to be used.
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