What is the origin of odontoblast?
What is the origin of odontoblast?
Odontoblasts are tall columnar cells located at the periphery of the dental pulp. They derive from ectomesenchymal cells originated by migration of neural crest cells during the early craniofacial development.
What is the meaning of odontoblasts?
Definition of odontoblast : any of the elongated radially arranged cells on the surface of the dental pulp that secrete dentin.
What is the function of odontoblast cell?
The odontoblast sits between the soft dental pulp and hard dentin, and its primary function is to produce dentin.
What do odontoblasts produce?
Odontoblasts are specialized cells that produce dentin and exhibit unique morphological characteristics; i.e., they extend cytoplasmic processes into dentinal tubules.
What factors are involved in odontoblast differentiation?
In developing teeth the differentiation of odontoblasts is triggered by the enamel epithelium and is tightly coupled with morphogenesis. There is substantial evidence that even in mature teeth the cells of the dental pulp retain the capability to differentiate into odontoblasts under suitable conditions.
What is Premeloblast?
These morphologic changes are known as: (i) the inductive stage (pre-ameloblasts), where the cells of inner enamel epithelium begin to differentiate into ameloblasts, elongate, their nuclei shift distally (away from the dental papilla), and their cytoplasm becomes filled with organelles needed for synthesis and …
Where are ameloblasts found?
Ameloblasts are cells present only during tooth development that deposit tooth enamel, which is the hard outermost layer of the tooth forming the surface of the crown.
What factors are involved in Odontoblast differentiation?
What makes dentinal tubules?
The dentinal tubules contain the cytoplasmic extensions of odontoblasts that once formed the dentin and maintain it. The cell bodies of the odontoblasts are aligned along the inner aspect of dentin against a layer of predentin where they also form the peripheral boundary of the dental pulp.
What is the function of odontoblasts?
Odontoblasts: Specialized hard-tissue-forming cells in the dentin-pulp complex Odontoblasts are specialized cells that produce dentin and exhibit unique morphological characteristics; i.e., they extend cytoplasmic processes into dentinal tubules.
What is the meaning of odonodontoblast?
o·don·to·blast. One of the dentin-forming cells, derived from mesenchyme of neural crest origin, lining the pulp cavity of a tooth. odontoblast. A specialized connective tissue cell, lying in the outer surface of the dental pulp, that produces DENTINE.
Where is the odontoblastic process located?
Odontoblasts constitute a single layer of cells on the surface of the pulpal tissue just below the predentin. At the end of the cell is the odontoblastic process. This process extends into the dentinal tubules and generally terminates at about one third the distance between the pulpal chamber and the dentino-enamel junction.
What is the difference between odontoblast and secretory odontoblasts?
During odontoblast differentiation, the short, columnar-shaped pre-odontoblasts elongate and extend cellular processes toward the basement membrane where dental epithelium and ecto-mesenchyme interface. Secretory odontoblasts are fully differentiated polarized columnar cells containing numerous organelles in their supranuclear area.
