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how surgical technique affect osseointegrationthe osteotomy preparation is critical both from biologic and biomechanical points of view the bone
determine the biocompatibility of the material it is a vital factor as we have discussed in detail in the preceeding part of this unit the nature of
factors affecting osseointegrationa biocompatibility of the materialb surgical technique-c bone density -d occlusal loade infectionf implant
stages of contact osteogenesisosteoconduction this is the first and the most important healing phase and relies on the recruitment and migration of
contact osteogenesis in this the osteogenic cells attach to the implant surface and the new de novo bone is formed on the implant surface first the
explain the distant osteogenesisin this an extracellular matrix establishes the implant surface contact the osteogenic cells line the host bone
osteogenesisthe term osteogenesis describes essentially two distinctly different phenomena by which bone can become juxtaposed to an implant
mechanisms of endosseous integrationthree terms may be used to describe individual aspects of bone formation process that can occur around implants
molecular and cellular strategies to improve bone formation at implantsthe healing response of biological tissues to the oxide surface is sensitive
name the proteins used in oteoblastsome of these proteins include fibronectin thrombospondin osteopontin and osteoadherin most of them have rgd cell
what is osteoblastthe osteoblast is the key for the development of new bone it is essential that a large number of osteoblasts accumulate on the
essential concepts of endosseous healing1 osteoblast is the prime bone matrix synthesizing cell like most secretory cells osteoblasts are polarized
maturation and adaptation 18 to 54 weeksthe final stage involves maturation and adaptation of the implant-bone interface peri-implant bone and the
lamellar compaction and remodeling 6 to 18 weeksa remodeling phase is initiated in which hematopoietic-derived osteoclastic cells form cutting cones
wound healing and formation of woven bone stage 1 wound healing and formation of woven bone callus 2 to 6 weeksthe ability of the body to respond to
determine the stages of healing eventsthe healing events are described in 3 stagesstage 1 wound healing and formation of woven bone callus 2 to 6
healing events around implantshealing of an implant is compared with the processes in normal bone healing or bone regeneration and with stable
physiologic adaptationmodeling is a surface specific activity apposition or resorption that produces a net change in the size andor shape of the bone
osseointegration vs biointegrationin 1985 deputter observed that there are two ways of implant anchorage or retention mechanical and bioactive
weisss theory of fibroosseous fixationweiss theory stated that there is a fibro-osseous ligament formed between the implant and the bone and this
branemarks theory of osseointegrationin 1952 swedish orthopedic surgeon branemark conducted microscopic studies done in situ of the bone marrow in
fibro-osseous retention vs osseointegrationfibro-osseous retention is the tissue to implant contact interposition of the healthy dense collagenous
determine the function of osseointegration osseointegration is also a measure of implant stability which occurs at two stages- primary and secondary
explain about osseointegrationosseointegration is regarded as the process of direct bone apposition on implant surfaces where the bone in contact
carbon based materialsthese include pyrolytic carbon polycrystalline vitreous carbon and carbonsilicon interstitial combinationvitreous carbon -solid