TREATMENT OF IMPACTED MAXILLARY CENTRAL INCISORS USING ORTHODONTIC TRACTIONS

Kim, Nam-Hyuk; Kim, Seong Oh; Song, Je Seon; Son, Heung-Kyu; Choi, Byung-Jai; Lee, Jae-Ho; Choi, Hyung-Jun

Journal of the Korean Academy of Pediatric Dentistry 2010;37(1):109-116.
Published online February 28, 2010.

TREATMENT OF IMPACTED MAXILLARY CENTRAL INCISORS USING ORTHODONTIC TRACTIONS

Nam-Hyuk Kim, Seong Oh Kim, Je Seon Song, Heung-Kyu Son, Byung-Jai Choi, Jae-Ho Lee, Hyung-Jun Choi

Department of Pediatric Dentistry, Department of Pediatric Dentistry and Oral Science Research Center, College of Dentistry, Yonsei University

매복된 상악 중절치의 교정적 처치를 통한 치험례

김남혁, 김성오, 송제선, 손흥규, 최병재, 이제호, 최형준

연세대학교 치과대학 소아치과학교실, 소아치과학교실 및 구강과학연구소

Correspondence: Hyung-Jun Choi, Tel: 02-2228-3175, Email: choihj@yuhs.ac

Received: 15 September 2009 • Accepted: 9 November 2009

Abstract

Impaction is defined as a cessation of the eruption of a tooth caused by a clinically or radiographically detectable physical barrier in the eruption path or by an ectopic position of the tooth. The reasons for impaction of the maxillary central incisor are supernumerary tooth, odontoma, ectopic position of tooth germ, dilacerated tooth and so force. Impacted tooth cause space loss due to proximal movement of adjacent tooth, malocclusion, root resorption of adjacent tooth, cyst formation, so careful observation and early detection is important and exact treatment should be applied to prevent these results. The treatment options of impacted tooth include induction an eruption through extraction of deciduous tooth or surgical exposure, reposition of impacted tooth by surgical method or orthodontic treatment. Orthodontic traction is recommended when an eruption does not happen after removal of barrier or surgical exposure, when eruption path is too transpositioned to be corrected spontaneously so eruption does not expected. In these cases, traction of impacted maxillary central incisor was carried out using orthodontic method with closed eruption technique and it showed good clinical results so we report these cases.

Key Words: Tooth impaction, Orthodontic traction, Maxillary central incisor