Changes

*'''Outer epithelium'''

*'''Outer epithelium'''

*'''Stellate reticulum'''- star shaped cells lying between the outer and inner epithelial layers. It has the appearance of connective tissue but is of epithelial derivation.

*'''Stellate reticulum'''- star shaped cells lying between the outer and inner epithelial layers. It has the appearance of connective tissue but is of epithelial derivation.

*'''Inner epithelium''' which becomes the enamel secreting [[Ameloblasts|ameloblast]] layer

*'''Inner epithelium''' which becomes the enamel secreting [[Enamel Organ#Ameloblasts|ameloblast]] layer

The enamel organ has many different components. These consist of:

The enamel organ has many different components. These consist of:

===Enamel===

===Enamel===

Enamel has an '''ectodermal''' origin. It is synthesised by [[Ameloblasts|ameloblasts]]. It is very hard, densly calcified and '''acellular''', therefore cannot regenerate.

Enamel has an '''ectodermal''' origin. It is synthesised by [[Enamel Organ#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'''.

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'''.