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| [[Image:Soft Histology of Enamel Organ.jpg|thumb|right|150px|Histology of Enamel Organ - Copyright RVC 2008]] | | [[Image:Soft Histology of Enamel Organ.jpg|thumb|right|150px|Histology of Enamel Organ - Copyright RVC 2008]] |
| [[Image:Enamel Organ Layers.jpg|thumb|right|150px|Enamel Organ Layers - Copyright RVC 2008]] | | [[Image:Enamel Organ Layers.jpg|thumb|right|150px|Enamel Organ Layers - Copyright RVC 2008]] |
| + | [[Image:Thomes' Fibres Histology.jpg|thumb|right|250px|Thomes' Fibres - Copywright RVC 2008]] |
| The main components which form the enamel organ are: | | The main components which form the enamel organ are: |
| *'''Outer epithelium''' | | *'''Outer epithelium''' |
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| The '''lamina dura''' is seen as a white line radiographically. | | The '''lamina dura''' is seen as a white line radiographically. |
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| + | ===Enamel=== |
| + | Enamel has an '''ectodermal''' origin. It is synthesised by [[Ameloblasts|ameloblasts]]. It is very hard, densly calcified and '''acellular''', therefore cannot regenerate. |
| + | |
| + | Complicated enamel folding occurs in teeth where the '''[[Enamel Organ#Crown|crowns]]''' are high. Enamel forming secretions pass through processes of apical cytoplasmic extension called '''Thomes' Fibres'''. |
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− | *'''[[Enamel|Enamel]]'''
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| *'''[[Dentine - Anatomy & Physiology|Dentine]]''' | | *'''[[Dentine - Anatomy & Physiology|Dentine]]''' |
| *'''[[Cementum - Anatomy & Physiology|Cementum]]''' | | *'''[[Cementum - Anatomy & Physiology|Cementum]]''' |
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| *'''[[Odontoblasts - Anatomy & Physiology|Odontoblasts]]''' | | *'''[[Odontoblasts - Anatomy & Physiology|Odontoblasts]]''' |
| *'''[[Cementoblasts - Anatomy & Physiology|Cementoblasts]]''' | | *'''[[Cementoblasts - Anatomy & Physiology|Cementoblasts]]''' |
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| + | |
| + | ==Test yourself == |
| + | |
| + | [[Oral_Cavity_- Anatomy & Physiology_-_Flashcards#Teeth_&_Gingiva_Flashcards|Teeth and Gingiva - Flashcards]] |
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| [[Category:Teeth - Anatomy & Physiology]] | | [[Category:Teeth - Anatomy & Physiology]] |
− | [[Category:To Do - AimeeHicks]] | + | [[Category:A&P Done]] |