The dental papilla is a condensation of ectomesenchymal cells called odontoblasts, seen in histologic sections of a developing tooth. It lies below a cellular aggregation known as the enamel organ. The dental papilla appears after 8-10 weeks intra uteral life. The dental papilla gives rise to the dentin and pulp of a tooth. Drawing of the structure of cork as it appeared under the microscope to Robert Hook from Micrographia which is the origin of the word cell. Cells in culture, stained for keratin (red) and DNA (green). ... An odontoblast is a biological cell that is part of the outer surface of the dental pulp, and whose biological function is dentinogenesis, which is the creation of dentin, the substance under the tooth enamel and ivory. ... A thin section of lung tissue stained with hematoxylin and eosin. ... Radiograph of lower right (from left to right) third, second, and first molars in different stages of development. ... The enamel organ, also known as dental organ, is a cellular aggregation seen in histologic sections of a developing tooth. ... Parts of a tooth, including dentin Dentin (BE: dentine) is the substance between the enamel (substance in the crown) or cementum (substance in the root) of a tooth and the pulp chamber. ... The dental pulp is the part in the center of a tooth made up of living soft tissue and cells called odontoblasts and others. ... This article or section does not cite its references or sources. ...

The enamel organ, dental papilla, and dental follicle together forms one unit, called the tooth germ. This is of importance because all the tissues of a tooth and its supporting structures form from these distinct cellular aggregations. The dental follicle is a sac containing the developing tooth and its odontogenic organ. ...

References

• Cate, A.R. Ten. Oral Histology: development, structure, and function. 5th ed. 1998. ISBN 0-8151-2952-1.