Author, Donkey, Bureaucrats, Administrators
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Text replace - "[[Crown|" to "[[Enamel Organ#Crown|"
11. Epithelial cells near the distal tooth form [[Cementoblasts - Anatomy & Physiology|cementoblasts]], secreting [[Cementum - Anatomy & Physiology|cementum]] around the tooth [[Root - Anatomy & Physiology|root]].
11. Epithelial cells near the distal tooth form [[Cementoblasts - Anatomy & Physiology|cementoblasts]], secreting [[Cementum - Anatomy & Physiology|cementum]] around the tooth [[Root - Anatomy & Physiology|root]].
There is a reciprocal inductive interaction between the oral epithelium and mesenchyme precursors. The mesenchyme forms the tooth, it has labile differentiative properties but stable morphogenic properties. Tooth formation starts at the [[Crown|crown]] and progresses towards the [[Root - Anatomy & Physiology|root]]. The tooth does not acquire full length until the crown has emerged. Tooth growth is appositional.
There is a reciprocal inductive interaction between the oral epithelium and mesenchyme precursors. The mesenchyme forms the tooth, it has labile differentiative properties but stable morphogenic properties. Tooth formation starts at the [[Enamel Organ#Crown|crown]] and progresses towards the [[Root - Anatomy & Physiology|root]]. The tooth does not acquire full length until the crown has emerged. Tooth growth is appositional.
==Eruption==
==Eruption==
===Deciduous Tooth===
===Deciduous Tooth===
Eruption occurs after the [[Crown|crown]] has fully formed (prior to complete [[Root - Anatomy & Physiology|root]] formation). It provides the space required for [[Root - Anatomy & Physiology|root]] completion. The epithelial covering is continuous with gums after eruption. Erosion (wear) removes the epithelium. The 'toothless' gene stops eruption.
Eruption occurs after the [[Enamel Organ#Crown|crown]] has fully formed (prior to complete [[Root - Anatomy & Physiology|root]] formation). It provides the space required for [[Root - Anatomy & Physiology|root]] completion. The epithelial covering is continuous with gums after eruption. Erosion (wear) removes the epithelium. The 'toothless' gene stops eruption.
[[Image:Tooth Radiograph.jpg|thumb|right|250px|Tooth Radiograph - Copyright Nottingham 2008]]
[[Image:Tooth Radiograph.jpg|thumb|right|250px|Tooth Radiograph - Copyright Nottingham 2008]]