ameloblast


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Related to ameloblast: odontoblast, ameloblastoma

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 ?
Influence of fluoride on secretory pathway of the secretory ameloblast in rat incisor tooth germs exposed to sodium fluoride.
Effects of a macrolide antibiotic on enamel formation in rat incisors - primary lesion of ameloblast at the transition stage.
Inadequate amounts of vitamin C results in changes in the ameloblasts and odontoblasts; ameloblasts and odontoblast atrophy, and there is a decrease in their orderly polar arrangement.
As mottled enamel is the result of partial failure of ameloblasts to properly elaborate and lay down enamel, it is a developmental injury.
1) They are not true neoplasms; rather, they are hamartomas that form from the growth of completely differentiated epithelial and mesenchymal cells that give rise to ameloblasts and odontoblasts.
Although its murine and porcine counterparts play a role in maturation of the dental enamel with stage-specific production in ameloblasts and odontoblasts (23-25), studies in this area in humans have not been reported.
This toxic effect extends to the ameloblasts making tooth enamel, which is consequently weakened and then made brittle; its visible appearance is, of course, dental fluorosis.
This process is controlled by ameloblasts, which secrete an extracellular protein matrix and provide a gel scaffold to support apatitic crystal growth (Fincham & Simmer 1997).
Placoid scales develop in the upper layer of the dermis as dermal papillae (scale primordia), which eventually differentiate into an innermost dental papilla, a layer of odontoblasts that secrete dentine, and a layer of ameloblasts that secrete enamel (Kemp 1999).
Second, the interference by TCDD with the formative stage of tooth development--that is, the function of secretory ameloblasts and odontoblasts--results in delayed or defective mineralization of the molar teeth (Gao et al.
Its production begins with a matrix of amelogenin, produced by cells called ameloblasts, along with the less abudant protein enamelin.