Figure 11

Mmp20^−/− secretory stage ameloblasts (Level 1.5–2.2) sometimes contain multiple large spherical dense bodies of varying appearances (magenta arrows) as well as more dense spherical bodies at supranuclear and infranuclear locations (yellow arrow). The quantity of these spherical bodies diminishes as the secretory stage progresses and does not disrupt the integrity or overall morphology of the ameloblast layer (C). These bars in (A) and (C) = 20 µm, in (B) = 5 µm.