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Initiation of Root Formation
This section shows the transitional region between the crown (A - above the line) and the root (B - below the line). Three functional stages of the dental organ can be observed: morphogenic (1), organizing (2), and secretory (3). A thin sliver of immature enamel (C) appears near the top right between the ameloblasts (D) and the dentin (E). IDE cells cease to differentiate into ameloblasts (tall columnar cells) in the region of the developing root. However, the inner dental epithelium continues to induce the formation of odontoblasts (F). The structure below the line, which will form the shape of the root, is the epithelial diaphragm (G).
Legend
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A - crown of tooth |
F - odontoblasts |
