International Journal of Dentistry / 2012 / Article / Fig 2

Review Article

Periosteum: A Highly Underrated Tool in Dentistry

Figure 2

The three different Zones of periosteum; Zone 1 has an average thickness of 10–20 um consisting predominantly of osteoblasts; the majority of cells in Zone 2 are fibroblasts, with endothelial cells being most of the remainder. Zone 3 has the highest volume of collagen fibrils among all the three zones. The bottom of the figure shows regenerative capacity of the periosteum to form different cell types.
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