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In embryology and prenatal development, 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 of intra uteral life.
The dental papilla contains cells that develop into odontoblasts, which are dentin-forming cells. [27] Additionally, the junction between the dental papilla and inner enamel epithelium determines the crown shape of a tooth. [28] The dental follicle gives rise to three important cells: cementoblasts, osteoblasts, and fibroblasts. Cementoblasts ...
The ectomesenchyme cells condense further and become dental papilla. Together the epithelial enamel organ and ectomesenchymal dental papilla and follicle form the tooth germ. The dental papilla is the origin of dental pulp. Cells at the periphery of the dental papilla undergo cell division and differentiation to become odontoblasts. Pulpoblasts ...
B: dental papilla C: dental follicle. The tooth germ is an aggregation of cells that eventually forms a tooth. [2] These cells are derived from the ectoderm of the first pharyngeal arch and the ectomesenchyme of the neural crest. [1] [3] [4] The tooth germ is organized into three parts: the enamel organ, the dental papilla and the dental sac or ...
The dental papilla contains cells that develop into odontoblasts, which are dentin-forming cells. [3] Additionally, the junction between the dental papilla and inner enamel epithelium determines the crown shape of a tooth. [2] The dental follicle gives rise to three important entities: cementoblasts, osteoblasts, and fibroblasts. Cementoblasts ...
Both the dental papilla and the tooth sac are not structurally defined in the bud stage, and will become more defined in subsequent stages (Cap and Bell stages). The interaction and signalling between the enamel organ and the surrounding mesenchymal cells play an important role in the later stages of tooth development. [2] Each dental arch will ...
Odontoblasts first appear at sites of tooth development at 17–18 weeks in utero and remain present until death unless killed by bacterial or chemical attack, or indirectly through other means such as heat or trauma (e.g. during dental procedures). Odontoblasts were originally the outer cells of the dental papilla.
The interdental papilla, also known as the interdental gingiva, is the part of the gums (gingiva) that exists coronal to the free gingival margin on the mesial and distal surfaces of the teeth. The interdental papillae fill in the area between the teeth apical to their contact areas to prevent food impaction; they assume a conical shape for the ...