Mindblown: a blog about philosophy.
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Bone loss
Physiologic loss of bone mass. The peak of mineral density is reached between 30 and 40 years of age; women lose about 35% of cortical bone and 50% of trabecular bone, whereas men lose about two-thirds of these amounts. The decline in living bone tissue due to a combination of influences and aging. With age,…
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Bone induction
Interaction among pluripotential cells and bone morphogenetic proteins (BMPs) that converts these cells to osteoblasts.
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Micromotion and b.–i. i.
Micromotion during initial osseointegration may precipitate failure of osseointegration to occur.
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Implant design and b.–i. i.
Architecture of the implant stack or its overall design, including thread design and pitch. It affects the ability of the implant to be placed into its osteotomy with primary stability and is deemed necessary for osseointegration to occur.
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bone–implant interface
Line of demarcation between the nonliving surface of an endosseous implant and the living bone it contacts. Numerous factors may influence the degree to which bone heals in contact with the implant surface, including surface texture, surface contamination, time since placement, and extent of functional loading, among others.
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bone–implant contact (BIC)
Direct contact of bone with the surface of an endosseous implant as seen microscopically. The ratio of bone contact to implant surface (percent) is used to evaluate implant surface topographies and materials.
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Bone healing
Cellular events, recapitulating embryogenesis. After initiation of woven bone formation, deposition of parallelfibered bone ensues. These two primary types of bone repair the defect within weeks; thereafter, the formation of perivascularly arranged lamellar bone takes place with simultaneous resorption of the two primary bone types. This substitution, which gives strength to the bone, may take…
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Bone harvest
Acquisition of bone from a patient for an autogenous graft, from deceased individuals for an allogeneic graft, or from animals for a xenograft.
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Bone grafting
A surgical procedure performed to establish additional bone volume, using autogenous bone and/or a bone replacement graft, prior to or simultaneously with dental implant placement.
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Bone graft
Bone taken from a donor site of the patient (autogenous) or from an outside source (allograft, alloplastic, or xenograft). A bone graft is used in the alveolar ridge to augment a bone deficiency. It can be used with simultaneous or subsequent implant placement. Source of an autogenous bone graft may be intraoral or extraoral in…
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