Reduced enamel epithelium: Difference between revisions

Reduced enamel epithelium
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Latest revision as of 16:56, 29 December 2024

The reduced enamel epithelium is a layer of ameloblasts and stratum intermedium that covers the enamel of a tooth once it has fully formed but before it erupts into the oral cavity. This epithelium plays a crucial role in protecting the enamel surface from resorption and external factors until the tooth emerges.

Formation[edit]

The reduced enamel epithelium is formed during the final stages of amelogenesis, the process of enamel formation. Once the enamel has reached its full thickness, the ameloblasts, which are responsible for enamel secretion, cease their activity and become part of the reduced enamel epithelium.

Function[edit]

The primary function of the reduced enamel epithelium is to protect the enamel surface. It acts as a barrier against bacteria and other potential contaminants in the oral environment. Additionally, it facilitates the fusion of the gingiva to the enamel surface, forming the junctional epithelium after tooth eruption.

Clinical Significance[edit]

The integrity of the reduced enamel epithelium is essential for maintaining enamel health. Damage or premature loss of this epithelium can lead to enamel exposure and increased risk of dental caries and other oral diseases.

References[edit]

External links[edit]

@@ Line 1: / Line 1: @@
-== Reduced Enamel Epithelium ==
-The '''Reduced Enamel Epithelium''' (REE) is a layer of cells that forms on the surface of a tooth during the late stages of tooth development. It is derived from the [[Enamel organ|enamel organ]], and its primary function is to protect the underlying [[Dental enamel|dental enamel]] from damage during tooth eruption.
+{{Infobox medical condition
+| name = Reduced enamel epithelium
+| image = <!-- Image removed -->
+| caption = <!-- Caption removed -->
+| field = [[Dentistry]]
+}}
-[[File:Tooth development diagram en.svg|thumb|right|300px|Diagram of tooth development showing the formation of the reduced enamel epithelium.]]
+The '''reduced enamel epithelium''' is a layer of [[ameloblasts]] and [[stratum intermedium]] that covers the [[enamel]] of a [[tooth]] once it has fully formed but before it erupts into the [[oral cavity]]. This epithelium plays a crucial role in protecting the enamel surface from resorption and external factors until the tooth emerges.
-== Formation ==
+==Formation==
+The reduced enamel epithelium is formed during the final stages of [[amelogenesis]], the process of enamel formation. Once the enamel has reached its full thickness, the ameloblasts, which are responsible for enamel secretion, cease their activity and become part of the reduced enamel epithelium.
-The reduced enamel epithelium is formed as the [[Ameloblasts|ameloblasts]], the cells responsible for enamel production, undergo a transformation process. This process is triggered by the completion of enamel formation. The ameloblasts, which were once tall, columnar cells, become shorter and flatter, forming a thin layer of squamous epithelium. This layer is the reduced enamel epithelium.
+==Function==
+The primary function of the reduced enamel epithelium is to protect the enamel surface. It acts as a barrier against [[bacteria]] and other potential contaminants in the [[oral environment]]. Additionally, it facilitates the fusion of the [[gingiva]] to the enamel surface, forming the [[junctional epithelium]] after tooth eruption.
-== Function ==
+==Clinical Significance==
+The integrity of the reduced enamel epithelium is essential for maintaining enamel health. Damage or premature loss of this epithelium can lead to enamel exposure and increased risk of [[dental caries]] and other [[oral diseases]].
-The primary function of the reduced enamel epithelium is to protect the underlying enamel during tooth eruption. The REE forms a physical barrier between the enamel and the oral environment, preventing damage from mechanical forces and bacterial invasion.
+==See also==
+* [[Amelogenesis]]
+* [[Tooth eruption]]
+* [[Junctional epithelium]]
+* [[Dental caries]]
-In addition to its protective role, the REE also plays a role in the formation of the [[Periodontium|periodontium]], the tissues that support the teeth. After tooth eruption, the REE fuses with the oral epithelium to form the junctional epithelium, a specialized tissue that seals the gap between the tooth and the gum tissue.
+==References==
+{{Reflist}}
-== Clinical Significance ==
+==External links==
+* [https://www.wikimd.com/wiki/Amelogenesis Amelogenesis on WikiMD]
+* [https://www.wikimd.com/wiki/Tooth_eruption Tooth eruption on WikiMD]
-Abnormalities in the formation or function of the reduced enamel epithelium can lead to dental problems. For example, if the REE does not form properly, the underlying enamel may be exposed to damage, leading to tooth sensitivity or decay.
+[[Category:Dentistry]]
+[[Category:Oral biology]]
-Furthermore, abnormalities in the transformation of the REE into the junctional epithelium can lead to periodontal disease. This is because the junctional epithelium plays a crucial role in sealing the space between the tooth and the gum tissue, preventing the invasion of bacteria.
+[[Category:Tooth development]]
-[[File:Periodontitis before and after.jpg|thumb|right|300px|Periodontitis, a potential consequence of abnormalities in the transformation of the reduced enamel epithelium.]]
-== See Also ==
-* [[Tooth development]]
-* [[Ameloblasts]]
-* [[Enamel organ]]
-* [[Periodontium]]
-== References ==
-<references />
-[[Category:Dental anatomy]]
-[[Category:Oral pathology]]
-[[Category:Histology]]