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J Korean Acad Pediatr Dent. 2011;38(3): 262-269.
DELAYED ERUPTION OF LOWER FIRST MOLAR ASSOCIATED WITH AMELOBLASTIC FIBROMA
Jung-Hwa Jung, Young-Jin Kim, Hyun-Jung Kim, Soon-Hyeun Nam
Department of Pediatric Dentistry, School of Dentistry, Kyungpook National University
Corresponding Author: Soon-Hyeun Nam ,Tel: 053-600-7201, Email: dent-ksy@hanmail.net
Received: February 17, 2011;  Accepted: June 25, 2011.
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ABSTRACT
Ameloblastic fibroma is rare true benign mixed odontogenic tumor. Most of these tumors occur in the posterior region of the mandible under 20 years of age. It develops generally associated with unerupted tooth and grows slowly on the surface of alveolar bone, therefore interferes normal tooth eruption. These lesions rarely showing a little bony expansion, are usually asymptomatic and are discovered incidentally on routine dental exam. It is similar to amleoblastic fibroodontoma and ameloblastic fibrodentinoma clinically and roentgenographically but represents no dental hard tissue formation histologically. Enucleation and curettage of surrounding bone are generally recommended options for treatment. Even though there are some reports of recurrence and malignant transformation and more aggressive treatment options like block resection are suggested sometimes, but in most cases, recurrence is unusual because it is well encapsulated and easily separated from adjucent bony socket. In these cases, we did conservative treatment such as enucleation and curettage to the patients who were visited for ameloblastic fibroma associated with delayed eruption of lower first molar. After regular check-ups, we found relatively natural eruption process of combined teeth.
Keywords: Ameloblastic fibroma | Delayed eruption of lower molars | Enucleation and curettage
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