DELAYED ERUPTION OF LOWER FIRST MOLAR ASSOCIATED WITH AMELOBLASTIC FIBROMA

Jung, Jung-Hwa; Kim, Young-Jin; Kim, Hyun-Jung; Nam, Soon-Hyeun

Journal of the Korean Academy of Pediatric Dentistry 2011;38(3):262-269.
Published online August 31, 2011.

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

법랑모세포 섬유종에 의한 하악 제1대구치의 맹출지연

정정화, 김영진, 김현정, 남순현

경북대학교 치의학전문대학원 소아치과학교실

Correspondence: Soon-Hyeun Nam, Tel: 053-600-7201, Email: dent-ksy@hanmail.net

Received: 17 February 2011 • Accepted: 25 June 2011

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.

Key Words: Ameloblastic fibroma, Delayed eruption of lower molars, Enucleation and curettage