ERUPTION GUIDANCE OF IMPACTED MANDIBULAR FIRST MOLAR BY SURGICAL EXPOSURE

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Journal of the Korean Academy of Pediatric Dentistry 2004;31(4):598-604.
Published online November 30, 2004.

ERUPTION GUIDANCE OF IMPACTED MANDIBULAR FIRST MOLAR BY SURGICAL EXPOSURE

외과적 노출술을 이용한 매복된 하악 제1 대구치의 자발적 맹출유도

김은정, 김난진, 조호진, 김현정, 김영진, 남순현

경북대학교 치과대학 소아치과학교실

Correspondence: ,

Abstract

Impaction of mandibular first molar is relatively rare and its overall frequency has been reported to be 0.01%. The etiology of impaction are lack of eruption space, physical obstacles such as supernumerary teeth, odontomas or odontogenic tumors, hereditary factors, functional disturbances of endocrine glands and traumas. Impaction of mandibular first molar can result in a short lower facial height, formation of a follicular cyst, pericoronal inflammation, resorption of the roots of neighboring teeth and malocclusion. The treatment options available for impacted teeth include surgical exposure, orthodontic forced eruption, surgical repositioning and surgical removal of unerupted molar. This report presents two cases of distally tilted and impacted mandibular first molars which were treated by surgical exposure. In these cases, we could observe spontaneous eruption of the impacted mandibular first molars after surgical exposure.

Key Words: Surgical exposure, Mandibular first molar, Impaction, Spontaneous eruption