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15 Cards in this Set
- Front
- Back
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What are the three Types implant systems?
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Subperiosteal
Transosseious Endosseous |
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Summary of implant fixation
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Implant installation
Blood clot formation Granulation tissue formation (fibroplasia, angiogenesis) Woven bone formation Bone remodeling (Mature lamellar bone formation) |
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Implant fixation
2 hrs after installation |
Wound chamber filled with blood coagulum (Clot formation)
Primary stability: close contact between the pitches and the bone |
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Implant fixation
Day 4 |
Osteoclasts are observed along the cut bone surface
Granulation tissue formation in the wound chamber |
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Implant fixation
1 week |
Cell-rich woven bone (immature bone) and provisional matrix
formation in the wound chamber: ‘Primary Spongiosa’ Direct contact between the newly formed mineralised trabecular bone and the SLA surface (contact osteogenesis) Osteoblasts (lining the trabeculae) and osteocytes are found |
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Implant fixation
2 weeks |
Large woven bone formation at the ‘apical’ area of the implant
Newly formed bone is continuous with the parent bone and along the SLA chamber surface |
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Implant fixation
4 weeks |
Continuous bone formation and maturation: Increase in mineralised tissue
Intense bone remodelling at a pitch region Newly formed bone extends from the cut bone surface into the chamber |
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Implant fixation
6, |
mixture of woven bone parallel-fibered and lamellar bone
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Implant fixation
8 and 12 weeks |
mature bone with marrow space (adipose cells)
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Implant fixation
Types of osteogenesis? |
Distance osteogenesis: New bone formation on the surfaces of old
bone in the peri-implant site Contact osteogenesis: Direct new bone formation on the surfaces of the implant itself (SLA surface - osteoconductive characteristic) |
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Define Primary stability
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mechanical stability of an inserted implant
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Micromovement/ Micromotion leads to?
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‣ Disruption of blood clot formation
‣ Disruption of angiogenesis ‣ Interfere with migration of osteogenic mesenchymal cells ➡ Repair by fibrous tissue NOT OSSEOINTEGRATION |
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Periosteal Differences between teeth and implant
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Define BW
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Soft tissue dimensions that face the teeth - minimum physiological
requirement for the soft tissue support |
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What is BW for teeth and implant?
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teeth: about 2.04mm
Implant: about 2.93mm |
