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

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]
References in periodicals archive ?
(19) The role of ameloblastin is less clear, but it has been found to have functions in the adhesion and control of ameloblasts differentiation.
Subtypes Characteristic histological features (1) Ameloblastic type With atypical and pleomorphic ameloblasts (2) Granular cell type Majority of cells are of the granular cell variety (3) Clear cell variant Majority of cells are of the clear cell variety (4) Spindle cell variant Spindle cell differentiation predominates the histology TABLE 7: Genetic profiling of odontogenic carcinomas by Alevizos et al.
Ameloblasts are responsible for the formation of enamel, depositing it in rings around the tooth crown beginning at the coronal surface and proceeding to the cervical region.
Vitamin A plays a crucial role in the formation of ameloblasts and odontoblasts.
As the odontoblasts express BMP, it induces ameloblasts to differentiate.
By tracing the descendants of genetically labeled cells, they also showed that Sox2 positive stem cells give rise to enamel-forming ameloblasts as well as other cell lineages of the tooth.
Sicher and Bhaskar suggested that disturbances during morpho-differentiation might affect the shape and size of tooth without impairing the function of ameloblasts or odontoblasts, whereas Hattab et al suggested that the anomaly might occur as a result of outfolding of enamel organ or hyper productivity of dental lamina.
Relationship of vitamin D with calbindin D9k and D28k expression in ameloblasts. Arch Oral Biol.
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.