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. Author manuscript; available in PMC: 2008 Feb 12.
Published in final edited form as: Mater Sci Eng A Struct Mater. 2007 Apr;27(3):450–468. doi: 10.1016/j.msec.2006.05.055

Fig. 2.

Fig. 2

Hierarchical structure of human tooth, inserts representing tubule characteristics as a function of position in reference to dentin-enamel junction (DEJ). In close proximity to the DEJ, low density distribution of tubules and small size. Tubules of large size and high density are noted in close proximity to the pulp and high-resolution image of intertubular dentin from this region treated with EDTA to reveal collagen network.