Ameloblastic fibro-odontoma in a child patient: case report and literature review

Gustavo Zanna Ferreira,Eduardo Sanches Gonçales,Carolina Ferrairo Danieletto-Zanna,Rômulo Maciel Lustosa,Willian Pecin Jacomacci,Liogi Iwaki Filho

doi:10.33448/rsd-v10i2.12430

Gustavo Zanna Ferreira, Eduardo Sanches Gonçales + Show 4 more

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https://doi.org/10.33448/rsd-v10i2.12430

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Abstract

The ameloblastic fibro-odontoma (AFO) is a mixed odontogenic tumor, with characteristics of ameloblastic fibroma, presenting enamel and dentin, which occurs more frequently in individuals aged 5 to 17 years. This paper reports na extensive case of ameloblastic fibro-odontoma in the mandible of a 3-year-old patient, discussed in comparison to cases selected from a brief literature review on the clinical characteristics, Evolution and therapeutic options for this lesion. In the last years, there was no consensus in the literature concerning its etiopathogenesis and classification, yet recently the AFO was classified as a developing odontoma. This case is in accordance with the 7 cases reported in the literature of AFO in the mandible of children aged 10 years or younger, especially concerning the lesion pattern and evolution and treatment adopted. The patient did not present relapse and exhibited local bone regeneration at the 3-year follow-up.

Highlights

The ameloblastic fibro-odontoma (AFO) is a benign and rare odontogenic tumor, more frequently observed in individuals aged 5 to 17 years
This paper reports a case of extensive ameloblastic fibro-odontoma in a child patient and reviews the literature on the treatment options (Pereira et al, 2018)
It has been proposed that the mixed odontogenic tumors known as ameloblastic fibroma, ameloblastic fibro-dentinoma, ameloblastic fibro-odontoma and complex odontoma represent a continuous maturation of development from one to another, respectively

Summary

Introduction

The ameloblastic fibro-odontoma (AFO) is a benign and rare odontogenic tumor, more frequently observed in individuals aged 5 to 17 years. The AFO usually affects the posterior mandibular region, presenting as an asymptomatic volume increase, possibly causing facial asymmetry, delayed tooth eruption and altered positioning of adjacent teeth (Manor et al, 2012). It presents as a unilocular, well-defined radiolucent area, with different levels of radiopacity, possibly associated with the crown of an impacted tooth. The relapse is uncommon and malignant transformation is rare, being more common in adult patients (Boxberger et al, 2011)

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