Journal of the Korean Academy of Pediatric Dentistry 2005;32(1):26-32.
Published online February 28, 2005.
THE FORCED ERUPTION OF IMPACTED MAXILLARY INCISOR: CASE REPORT
경북대학교 치과대학 소아치과학교실 
매복된 상악 중절치의 교정적 견인을 이용한 치험례
김종식, 김은정, 김현정, 남순현, 김영진
경북대학교 치과대학 소아치과학교실
Correspondence:  , 
Abstract
A tooth impaction means a state that a tooth does not erupt out of oral mucosa or alveolar bone for many reasons. The reasons for an impaction of the Maxillary central incisor are an odontoma, supernumerary tooth, space loss, prolonged remaining or early loss of a preceding deciduous tooth, abnormalities of crown or root caused by trauma of a deciduous tooth and an ectopic position of a tooth germ. In the case of the impacted maxillary incisor, a rapid mesial movement of a lateral incisor leads a space loss and a midline deviation can be happened. Furthermore, it can cause a cyst. When we treated a patient with an impacted central incisor early, we could see a better prognosis. It means an early diagnosis and an exact treatment are very important. Generally if the impaction is not severe or it is caused by a keratinized covering tissue, a surgical exposure can induce an eruption easily but an orthodontic force is recommended when an eruption does not happen after a surgical method, when the eruption path is too transpositioned to be corrected spontaneously and when an impacted tooth is located so deeply. In the treatment using an orthodontic force, careful considerations about a root length, pulp, and a periodontal tissue can improve the periodontal and esthetic prognosis for the long follow-up results. This case is using an orthodontic traction following a periodic observation and in no expectation of spontaneous eruption. After treatment of this case, I have got some knowledges, so I report this case.
Key Words: Impaction, Maxillary incisior, Orthodontic traction


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