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Fig. 4 | Evidence-Based Endodontics

Fig. 4

From: Apical termination of root canal procedures—ambiguity or disambiguation?

Fig. 4

a Tooth anatomy depicted by dye penetration. From the work of Oskar Keller, Anatomie der Wurzelkanäle des menschlichen Gebisses nach dem Aufhellungsverfahren. Zürich, Buchdruckerei, Berichthaus. 1928. Keller was a protégé of b Dr. Walter Hess—reproduced by permission of Nicola Perrini owner of the collection from Fondazione Castagnola that are found in Storia anatomica del sistema dei canali radicolari. Società Italiana di Endodonzia, 2010

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