But its main feature is the ability to "live", that is, to change its geometry and content, depending on external loads by creating and destroying the osteons
(structural units of bone tissue) [7, 8].
These constituents are organized into primary lamellar bone and Haversian systems or osteons
, which serve to nourish compact bone and represent bone's basic structural unit.
polymer-ceramic composite biomaterials, shaped as the osteons
of compact bone can be used in the treatment of segmental defects.
The sites which received ABB + CM showed more lamellar bone whereas OFD sites included mostly woven bone with primary osteons
. A part of newly-formed periodontal fibers were observed extending into the newly formed cementum, oriented obliquely to the root surface [Figure 6].
Donley et al., "Teriparatide increases bone formation in modeling and remodeling osteons
and enhances IGF-II immunoreactivity in postmenopausal women with osteoporosis," Journal of Bone and Mineral Research, vol.
Based on a qualitative evaluation of electronic microscopy of longitudinal tibia cross sections, hyperglycemic animals showed a preserved bone structure with osteons
separated by the interstitial bone, lacunae, and osteocytes connected by canaliculus (Figure 5(a)), similar to healthy animals--sham group (Figure 5(b)).
Bone morphology was more mature and well organized, presenting a primary osteon
. A basic multicellular unit of osteoclasts cells (yellow arrows) that dissolves an area of the bone surface and then fills it with new bone by osteoblasts (white arrows) to form haversian systems or osteons
Normal alveolar bone was observed as cellular compact bone tissue with collagen fibers parallel and trabecular tissue osteons
typical with numerous mature marrow spaces of variable size, containing within adipose tissue.
The foremost export products are trout and salmon (around 94%), followed in a minor range by bivalves, algae, osteons
, abalone and oysters.
Rat alveolar bone is dense and it has no osteons
and marrow spaces while there is less amount of osteoid tissue along the bone surface of alveolus as compare to humans.21 In few studies, it has been reported that acid mucopolysaccaride is less in the rat bone.
in different colors, seen around implants, confirm that osteogenesis occurred during the entire period during which the implants were in the animals.