(b) Detail of an enamel organ showing the layers of predentin (PD) and dentin (D) and a layer of enamel (E), along with the organized cell layers that.

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Presentation transcript:

(b) Detail of an enamel organ showing the layers of predentin (PD) and dentin (D) and a layer of enamel (E), along with the organized cell layers that produced this material. Odontoblasts (O) are in contact with the very cellular mesenchyme of the dental papilla (DP) that will become the pulp cavity. Ameloblasts (A) are prominent in the now much thinner enamel organ, which is very close to developing bone (B). Enamel formation continues until shortly before tooth eruption; formation of dentin continues after eruption until the tooth is fully formed. Odontoblasts persist around the pulp cavity, with processes penetrating the dental layer, producing factors to help maintain dentin. Mesenchymal cells immediately around the enamel organ differentiate into the cells of cementum and other periodontal tissues. X120. H&E. Source: Chapter 15. Digestive Tract, Junqueira’s Basic Histology, 13e Citation: Mescher AL. Junqueira’s Basic Histology, 13e; 2013 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/mesc13/mesc13_c015f010.png&sec=42526639&BookID=574&ChapterSecID=42524601&imagename= Accessed: October 08, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved