Changes

==Main Cells==

==Main Cells==

[[Image:Ameloblast Histology.jpg|thumb|right|150px|Ameloblast Histology - Copywright RVC 2008]]

[[Image:Ameloblast Histology.jpg|thumb|right|150px|Ameloblast Histology - Copywright RVC 2008]]

===Ameloblasts===

===Ameloblasts===

'''Ameloblasts''' are cells in the enamel organ which forms the tooth. They secrete '''[[Enamel Organ#Enamel|enamel]]'''.

'''Ameloblasts''' are cells in the enamel organ which forms the tooth. They secrete '''[[Enamel Organ#Enamel|enamel]]'''.

The first layer of [[Enamel Organ#Dentine|dentine]] is formed on the enamel organ. As production increases, the odontoblasts are displaced from the [[Enamel Organ#Enamel|enamel]]. It is a major part of the tooth structure and is produced continually by the odontoblasts. The rate of [[Enamel Organ#Dentine|dentine]] synthesis is increased during repair as it is innervated (but still acellular).

The first layer of [[Enamel Organ#Dentine|dentine]] is formed on the enamel organ. As production increases, the odontoblasts are displaced from the [[Enamel Organ#Enamel|enamel]]. It is a major part of the tooth structure and is produced continually by the odontoblasts. The rate of [[Enamel Organ#Dentine|dentine]] synthesis is increased during repair as it is innervated (but still acellular).

*'''[[Cementoblasts - Anatomy & Physiology|Cementoblasts]]'''

Epithelial cells are present near the distal end of the cup. They become follicle cells. '''Cementoblasts''' synthesise [[Enamel Organ#Cementum|cementum]] which mostly contains '''collagen I'''.

 

[[Enamel Organ#Cementum|Cementum]] surrounds the '''[[Enamel Organ#Dentine|dentine]]''' of the [[Enamel Organ#Root|root]]. [[Enamel Organ#Cementum|Cementum]] is acellular and not readily absorbed.

==Test yourself ==  

==Test yourself ==