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Currently, autograft bone harvested from the iliac crest is considered the 'gold standard' due to its superior osteogenic properties. However, associated donor site morbidity, an increased surgery and recovery time, and a limited supply of donor bone are limiting its use. [2] Allograft bone is a logical alternative to autograft.
Demineralization is the opposite process of mineralization; it is a process of reduction in the mineral content in tissue or an organism. Examples include bone demineralization or tooth demineralization. Demineralization can lead to serious diseases such as osteoporosis, rickets, or tooth decay. [1]
Astronauts lose an average of more than 1% bone mass per month spent in space. [1] There is concern that during long-duration flights, excessive bone loss and the associated increase in serum calcium ion levels will interfere with execution of mission tasks and result in irreversible skeletal damage. [2]
As a result of demineralization, the bones become less rigid. Physical signs include deformities like triradiate pelvis [14] and lordosis. The patient has a typical "waddling" gait. However, these physical signs may derive from a previous osteomalacial state, since bones do not regain their original shape after they become deformed.
Osteopenia, known as "low bone mass" or "low bone density", is a condition in which bone mineral density is low. [1] Because their bones are weaker, people with osteopenia may have a higher risk of fractures, and some people may go on to develop osteoporosis. [2] In 2010, 43 million older adults in the US had osteopenia. [3]
The cells of our bone that is involved in bone formation and bone breakdown is osteoblast and osteoclast respectively. Osteoclasts are cells of bones that promote bone demineralization or bone resorption. [3] In contrast, Osteoblast promotes calcium absorption by the bone therefore, promoting bone mineralization and formation of new bones. [2]
Hypophosphatasia (/ ˌ h aɪ p oʊ ˈ f ɒ s f eɪ t ˌ eɪ ʒ ə /; also called deficiency of alkaline phosphatase, phosphoethanolaminuria, [5] or Rathbun's syndrome; [1] sometimes abbreviated HPP [6]) is a rare, and sometimes fatal, inherited [7] metabolic bone disease. [8]
The result is mineral formation not strongly controlled by the cellular processes of the animal host (i.e., remote mineralization); this may lead to unusual crystal morphologies. [ 10 ] Biologically influenced mineralization takes place when chemical conditions surrounding the site of mineral formation are influenced by abiotic processes (e.g ...