Figure 2.

Histology of biopsies. (A): Representative hematoxylin-eosin staining of human in vivo stem cell (SC)-treated mandible sections revealed the presence of a compact bone architecture, characterized by Haversian channels surrounded by several lamellae. (B): In contrast, human mandible control biopsies were constructed from cancellous (spongy) bone, consisting in interrupted lamellae and numerous large spaces filled with marrow and arranged in a more or less regular pattern. (C, D): Mallory's trichrome staining confirmed the bone types present in human in vivo SC-treated mandible (C) and human mandible control (D). Scale bars = 250 μm.