File:Frontzahn Oberkiefer 20090930 02.JPG

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Description Retzius-Lines; Oberkiefer Frontzahn, Alter: 21 Jahre, starke Abrasion; Retzius-Linien in der vollen Bildauflösung gut zu erkennen: periodische Linien ("Querstreifung"), zurückzuführen auf Mineralisationsunterschiede während der Amelogenese. Der Abstand schwankt von Linie zu Linie zwischen 4 und 150 μm. Die Retziusstreifen beruhen häufiger auf einer Hypomineralisation als auf einer Hypermineralisation. Von struktureller Bedeutung aller temporären Zähne ist die Neonatallinie, die Grenze zwischen prä- und postnatal gebildetem Schmelz. Sie stellt entwicklungsgeschichtlich und ontogenetisch die erste Retziuslinie im laktalen Zahn dar.
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Author Politikaner
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current21:29, 3 October 2009Thumbnail for version as of 21:29, 3 October 20092,848 × 4,272 (4.05 MB)Politikaner{{Information |Description=Oberkiefer Frontzähne |Source=own picture |Date=August 2009 |Author=Politikaner |Permission=Attribution ShareAlike 3.0 |other_versions= }} {{cc-by-sa-3.0}} Category:Teeth
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