odontoblastoma

1. A tumor composed of neoplastic epithelial and mesenchymal cells that may differentiate into cells able to produce calcified tooth substances. 2. An odontoma in its early formative stage. [odontoblast + G. -oma, tumor]

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odon·to·blas·to·ma (o-don″to-blas-toґmə) a tumor made up of odontoblasts.