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Cancellous
Allograft (FDBA: Freeze Dried Bone Allograft)
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Cancellous Bone is a spongy
interior layer of bone and is called a spongy bone or trabecular bone due
to it’s type and structure.
It has good osteoconductive properties and is very well suited to fill defect
in the bony structure. In addition, it is a strong bone graft material that
can provide structural support so it is readily remodelled by the human
body and are replaced by new host bone.
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Cortical
Allograft (FDBA: Freeze Dried Bone Allograft)
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Cortical Bone is a compact type
of bone tissue. It facilitates bone’s main functions such as supporting
body, protecting vital organs, providing levers for movement and storing
minerals especially calcium.
It is found on the outside of bones and it has much higher density there
it is widely used to repair bone fractures.
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DBM Allograft
(DFDBA: Demineralized Freeze Dried Bone Allograft)
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Demineralized Bone is prepared
by acid extraction of allograft bone, resulting in loss of most of the mineralized
component but retention of collagen and noncollagenous proteins, including
growth factors. The efficacy of a demineralized bone matrix as a bone-graft
substitute or extender may be related to the total amount of bone morphogenetic
protein (BMP) present, and the ratios of the different BMP’s present,
provide an ideal combination of osteoinduction and osteoconduction for guided
bone regeneration.
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