ameloblastic odontoma

ameloblastic odontoma

n.

A benign mixed odontogenic tumor having histological characteristics of both an odontoma and an ameloblastoma.

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ameloblastic odontoma,

a malignant tumor of the jaw that forms cementum, dentin, enamel, and pulp tissue. See also composite odontoma.

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odontoma (ō´dontō´m),

n a common hematoma made up of dentin, enamel, cementum, and pulp tissue. Two types exist: complex odontoma and compound odontoma.

Odontoma.

odontoma, ameloblastic

n a form characterized by the occurrence of an ameloblastoma within an odontoma. See also ameloblastoma; odontoma.

odontoma, complex,

n an odontogenic tumor characterized by the formation of calcified enamel and dentin in an abnormal arrangement because of lack of morphodifferentiation.

odontoma, compound,

n a tumor of enamel and dentin arranged in the form of anomalous miniature teeth. Several small abnormal teeth surrounded by a fibrous sac.

odontoma, cystic,

n a form associated with a follicular cyst.

odontoma, gestant,

n See dens in dente.

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ameloblastic

pertaining to the formation of dental enamel.

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ameloblastic fibro-odontoma

see ameloblastic odontoma (below).

ameloblastic layer

the inner layer of cells of the enamel organ, which forms the enamel prisms of the teeth.

ameloblastic odontoma

resembles ameloblastic fibroma but the tumor contains enamel and dentine rather than only enamel.

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odontoma

a non-neoplastic malformation, a hamartoma, consisting of a mixture of enamel, dentine and cementum.

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ameloblastic odontoma

contains true neoplastic ameloblastic tissue. See ameloblastic odontoma.

complex odontoma

all the dental tissues are represented but not in an organized form.

composite odontoma

one consisting of both enamel and dentine in an abnormal pattern.

compound odontoma

all the dental tissues are present and organized into denticles, tooth-like structures.

radicular odontoma

one associated with a tooth root, or formed when the root was developing.

temporal odontoma

most commonly in the mastoid process of the petrous temporal bone manifested as a discharging sinus at the base of the ear. Is a dentigerous cyst.