110848
Beschreibung
Mindmap von Caroline Oxford, aktualisiert more than 1 year ago
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Erstellt von Caroline Oxford
vor fast 11 Jahre
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Amelogenisis
- Enamel, 96% mineral, contains hydroxiapitite rods
- Ameloblasts
- derived from internal dental epithelium
- Secrete enamel proteins,amelogenins 90%, amelin 5-10%
- Secrete enamel proteins,amelogenins 90%, amelin 5-10%
- derived from internal dental epithelium
- Has no blood supply, denpends on Glycogen and extracelluar matrix
- Phase 1+2
- A matrix is secreted and partially mineralised immediatly
- Completed with complete mineralisaion, removal of organic material. Maturation phase.
- Completed with complete mineralisaion, removal of organic material. Maturation phase.
- Starts only after Odontoblasts start to lay dentine.
- contains no collagen
- Ameloblasts move away from dentine surface, and produce a short conical process called 'Tomes Process'
- Secretion starts at proximal end of Tomes, walled pits form and then filled in from other end of Tomes
- Secretion starts at proximal end of Tomes, walled pits form and then filled in from other end of Tomes
- Ameloblasts move away from dentine surface, and produce a short conical process called 'Tomes Process'
- contains no collagen
- 3. Rebound to surface
- 4. The outamost 5um become highly mineralised
- 4. The outamost 5um become highly mineralised
- A matrix is secreted and partially mineralised immediatly
- Phase 1+2
- Very sensitive, tetricyclin staining, flourosis etc.
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