Static Osteogenesis versus Dynamic Osteogenesis: A Comparison between Two Different Types of Bone Formation

In contrary to what has traditionally been believed, bone formation can occur through two different types of osteogenesis: static (SO) and dynamic (DO) osteogenesis, which are thus named because the former is characterized by pluristratified cords unexpectedly stationary osteoblasts differentiate at a fairly constant distance from blood capillaries transform into osteocytes without moving onset site, while latter distinguished well-known typical monostratified laminae movable osteoblasts. The osteogenesis differ in multiple aspects both structural functional viewpoints. Besides osteoblast arrangement, polarization, motion, SO DO terms time occurrence (first later DO), conditioning factors they sensitive (endothelial-derived cytokines or mechanical loading, respectively), distribution give rise (haphazard ordered planes, collagen texture resulting deposition (woven lamellar, properties form (poor for due high cellularity woven good since located more suitable conditions perceive loading), finally functions each, i.e., provides preliminary rigid scaffold on take place, produces tissue according mechanical/metabolic needs.