Ameloblastic fibro-odontoma (AFO) is a benign, slow growing, expansile epithelial odontogenic tumor with odontogenic mesenchyme. Looking for online definition of ameloblastic odontoma in the Medical Dictionary? ameloblastic odontoma explanation free. What is ameloblastic odontoma?. Riddett S.A.A Composite Odontome at a Very Early Age. Brit. Dent. J., 77 (), p. Google Scholar. 2. Kemper J.W., Root to-odontoma. Amer.

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Indexed in Web of Science. Unknown; trauma, local infection, inheritance have been proposed.

There was no history of local trauma or infection. Ameloblastic fibroodontomas AFOs are slow-growing, benign tumors developing from the odontogenic epithelium and ectomesenchyme.

Fibrous tissue is of a primitive type containing spindle-shaped fibroblasts, some ameloboastic of hyalinization signifying dentin formation, and some clear spaces of enamel formation.

Hamner III and M. Gorlin syndrome, also known as nevoid basal cell carcinoma syndrome, is associated with basal cell carcinomas, odontogenic keratocysts and fibromas ovarian and heart.

Open in a separate window. Well defined multiple radiopacities. She had previously undergone several radiographic exams including panoramic, helical, and ameloblatic computed tomography. Sign in to access your subscriptions Sign in to your personal account. View at Google Scholar D. Am J Dis Child. It arises from ameloblasitc exuberant proliferation of the dental lamina or its remnants. C onclusion An Amelloblastic is an immature variant of complex odontoma, as the clinical and radiographic findings are identical.

Sign in to save your search Sign in to your personal account. The connective tissue is moderately cellular, ameoblastic spindle-shaped fibroblasts.


Radio opaque lesion surrounded by radiolucent zone. It may inhibit tooth eruption or displace involved teeth although teeth in the affected area are vital [ 1 — 3 ]. Purchase access Subscribe to JN Learning for one year.

Dentin and enamel were also present Figure 5. Upon reviewing his history with the family, he is noted to have had other bone tumors in the past along with multiple epidermal inclusion cysts and GI polyps. An year-old girl presented to our department on referral from another dentist to have a second opinion about a lesion involving the left mandible.

Ameloblastic fibroodontoma or complex odontoma: Two faces of the same coin

It is autosomal dominant and caused by STK11 mutations. To our surprise, histopathological examination revealed the tumoras an AFO [ Figure 7 ].

After achieving proper hemostasis, closure was done in layers. Mixed epithelial and mesenchymal tumor-like malformation hamartoma composed of dental hard and soft tissues. This is an open access article distributed under the Creative Commons Attribution Licensewhich permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This appearance suggests that the lesion is a complex odontoma.

Many authors reported that AFO can be treated adequately through a surgical curettage without removal of the adjacent teeth [ 14578 ]. AFOs are usually found to be asymptomatic and are most often discovered on routine radiography. This is in contrast to the ameloblastoma.

Abstract An year-old girl presented to our department to have a second opinion regarding a lesion involving her left mandible. More disorganized or haphazard arrangement of pulpal tissues, enamel or dentin. Sometimes their presence is suspected due to missing permanent dentition.


As noted in the literature, not all lesions previously classified as AFO are, in fact, aggressive lesions. Images hosted on other servers: In our case, the permanent left mandibular molars were missing.

Ameloblastic odontoma | definition of ameloblastic odontoma by Medical dictionary

National Center for Biotechnology InformationU. Despite numerous efforts, however, there is still considerable confusion concerning the nature of xmeloblastic lesions [ 17 ]. Oral inspection revealed good oral hygiene. Contributed by Kelly Magliocca, D. Recurrence uncommon for isolated sporadic odontoma Remaining teeth in region of odontoma may be affected by the presence of odontoma and require treatment.

AFO is a benign tumor that exhibits the same benign biologic behavior as that of ameloblastic fibroma, showing inductive changes that lead to the formation of both dentin and enamel [ 1 ]. Ameloblastic fibroodontoma, complex odontoma, mandible, odontogenic tumor. Histologically similar to the layering of normal tooth in the relation of dentin, enamel matrix and pulp Complex: On histopathological examination, it was diagnosed as an AFO.

Supernumerary teeth Complete well formed teeth Usually in males Can rarely be associated with syndromes such as cleidocranial dysostosis General: A few odontomx suggest the ameloblastic fibroma and the ameloblastic fibrodentinoma as ammeloblastic precursors.

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