one of a layer of enamel-secreting cells covering the dentin of a developing tooth.
a type of cell involved in forming dental enamel

ameloblast am·e·lo·blast (ām’ə-lō-blāst’)
A cell of the inner layer of the enamel organ of a developing tooth that is involved in enamel formation.


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  • Ameloblastic fibroma

    ameloblastic fibroma ameloblastic fibroma am·e·lo·blas·tic fibroma (ām’ə-lō-blās’tĭk) n. A benign mixed tumor of odontogenic origin, distinguished by a simultaneous neoplastic proliferation of both epithelial and mesenchymal components of the tooth bud without the production of hard tissue.

  • Ameloblastic fibrosarcoma

    ameloblastic fibrosarcoma ameloblastic fibrosarcoma n. A rapidly growing, painful, destructive tumor of the jaw that usually arises through a malignant change in a benign fibroma. Also called ameloblastic sarcoma.

  • Ameloblastic odontoma

    ameloblastic odontoma ameloblastic odontoma n. A benign mixed odontogenic tumor having histological characterisitics of both an odontoma and an ameloblastoma.

  • Ameloblastic layer

    ameloblastic layer ameloblastic layer n. The internal layer of the enamel organ. Also called enamel layer.

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