ameloblast

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ameloblast

 [ah-mel´o-blast]
a cell that takes part in forming dental enamel.

am·e·lo·blast

(am'ĕ-lō-blast),
One of the columnar epithelial cells of the inner layer of the enamel organ of a developing tooth, involved with the formation of enamel matrix.
[Early E. amel, enamel, + G. blastos, germ]

ameloblast

/am·e·lo·blast/ (am´ĕ-lo-blast″) a cell that takes part in forming dental enamel.

ameloblast

[am′ilōblast′]
Etymology: OFr, amel + Gk, blastos, germ
an epithelial cell from which tooth enamel is formed. Also called enamel cell. -ameloblastic, adj.

ameloblast

A columnar epithelial cell that secretes tooth enamel, which has tapering apical surfaces and Tomes processes and which is embedded in the enamel matrix of the tooth.

am·e·lo·blast

(am'ěl'ō-blast)
One of the columnar epithelial cells of the inner layer of the enamel organ of a developing tooth, concerned with the formation of enamel.
[Early E. amel, enamel, + G. blastos, germ]

am·e·lo·blast

(am'ěl'ō-blast)
One of the columnar epithelial cells of the inner layer of the enamel organ of a developing tooth, involved with the formation of enamel matrix.
Synonym(s): enamel cell, enameloblast.
[Early E. amel, enamel, + G. blastos, germ]

ameloblast (am´əlōblast´),

n an epithelial cell associated with the enamel organ that, during tooth development, secretes enamel matrix.
ameloblast atrophy,
n a wasting of or decrease in the epithelial cells, which form tooth enamel; may occur as the result of a deficiency in vitamin A. See also atrophy, periodontal.

ameloblast

a cell which takes part in forming dental enamel.
References in periodicals archive ?
24-27) Another line of evidence argues that, under normal conditions, there are basal levels of F- in the fluid of enamel which proportionally increase in the presence of concentrations of F- in plasma and expose the ameloblasts to milimolar concentrations (mM) of F-.
However, more studies are necessary to characterize the enameloid matrix and the participation of inner epithelium cells, ameloblasts and odontoblasts in enameloid matrix production.
Given their similar location and their large numbers of basally-directed secretion granules, the cells of the primordial spine's ectoderm-derived pseudostratified columnar epithelial layer may be identified as ameloblasts.
Enamel consists of hydroxyapatite crystallites secreted by ameloblast cells, and crystallites can be nonprismatic, as in most reptiles, or arranged into prisms and interprismatic material, as in most mammals (Koenigswald, 1982; Sahni, 1985).
14) Their molars' crown morphology is deformed, with additional cusps, and their incisors ameloblast cytodifferentiation is inhibited as well as enamel matrix deposition.
DISCUSSION: Ameloblastomas are derived from the ameloblasts or dental lamina.
At the secretory stage, ameloblasts secrete large amounts of enamel matrix proteins within which long thin ribbons of enamel mineral, mainly hydroxyapatite, are formed almost immediately the enamel matrix is laid down.
Characterized by pits, furrows, or swales on the surface of teeth, enamel hypoplasia is a permanent record of disturbances that hinder the development of ameloblasts (cells responsible for enamel deposition).
Certainly, dental fluorosis leaves a toxic and lethal impact on ameloblasts.
The tumor is made up of a blend of ameloblasts and epithelial cells that try to duplicate the enamel organ.
Comparing the clinical presentations of defects can provide insights about the ameloblasts response to environmental aggressions in primary and permanent dentitions, and thereby facilitate the identification of etiological agents.
The histopathological sections shows a thin non keratinised epithelium in the cystic lining where the cells are palisiding in the basal layer and they resemble with that of columnar cells with nuclei exhibiting reverse polarity resembling that of ameloblasts.