On the so-called von Korff fibers as seen on the human predentinal surface.

According to LESTER and BOYDE [1], the VON KORFF fibers which were described in detail by VON KORFF in 1905 were later confirmed by WEIDENREICH in 1925 in connection with the formation of mantle dentin but they were not observed at the stage of circumpulpal dentin formation. These findings of WEIDENREICH have been endorsed by recent studies using the electron microscopy [1, 2, 3]. However, opinions are by no means agreed. ZEROSI [4] holds that the VON KORFF fibers can be seen in the formation of secondary dentin, while SYMONS [5] maintains that these fibers become too thin in the circumpulpal dentin to be adequately recognized. In the present study, the author made use of the scanning electron microscopic technique and their result of discovery of fibers having very similar patterns to the VON KORFF fibers is reported.