TREATMENT OF MAXILLARY FIRST MOLARS WITH ERUPTION FAILURES

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Journal of the Korean Academy of Pediatric Dentistry 2009;36(2):281-287.
Published online May 31, 2009.

TREATMENT OF MAXILLARY FIRST MOLARS WITH ERUPTION FAILURES

경북대학교 치과대학 소아치과학교실

맹출장애를 가진 상악 제1대구치의 치료

최형준, 김현정, 김영진, 남순현

경북대학교 치과대학 소아치과학교실

Correspondence: ,

Received: 15 December 2008 • Accepted: 6 May 2009

Abstract

An eruption failure can be observed for child and adolescent periods when the primary dentition is changed to the permanent dentition through the mixed dentition frequently. The eruption failure can lead to miss erupting times of the tooth, then it will cause a lot of problems including root resorption, esthetic problem, transposition of adjacent tooth, malocclusoin and etc. Especially, the maxillary first molar is importantly concerned with occlusion and growth and is an essential tooth for development and maintenance of occlusion. So, it is a momentous part of more proper occlusal management to find these abnormal cases at the early stage and solve the problems. The sorts of eruption failures of the maxillary first molars can be divided into delayed eruption, impaction and the primary retention and the secondary retention. When physical obstacles cause impaction, first of all they must be removed then we can treat the impaction with observation after removal, surgical exposure or orthodontic traction. If the source of impaction is an ectopic eruption, the treatment can be a brasswire, a pendulum appliance, a space maintainer or space regainer after the extraction of the second deciduous tooth and etc. These cases are made a diagnosis of eruption failures of the maxillary first molars in mixed dentition period and have good prognosises after my treatments. So I reported them.

Key Words: Maxillary first molar, Eruption failure