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The European Journal of Orthodontics Advance Access originally published online on February 7, 2006
The European Journal of Orthodontics 2006 28(3):206-209; doi:10.1093/ejo/cji099
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© The Author 2006. Published by Oxford University Press on behalf of the European Orthodontics Society. All rights reserved. For permissions, please email: journals.permissions@oxfordjournals.org.

Surgical repositioning of a developing maxillary permanent central incisor in a horizontal position: spontaneous eruption and root formation

Kazuto Kuroe, Hiroshi Tomonari, Kazuhisa Soejima and Aya Maeda

Department of Orthodontics, Kagoshima University Graduate School of Medical and Dental Sciences, Japan

Address for correspondence Kazuto Kuroe, Department of Orthodontics, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan. E-mail: kk{at}denta.hal.kagoshima-u.ac.jp

This report describes the surgical repositioning of a developing maxillary permanent central incisor in a horizontal position, followed by spontaneous eruption and root formation without orthodontic traction. Surgical exposure of the right central incisor was achieved.

A 7-year-old boy referred for orthodontic consultation. Radiographic examination showed the crown of a maxillary right central incisor to be positioned horizontally with root formation at the initial stage. The surgically repositioned incisor (by a close-eruption surgical flap technique) spontaneously erupted into correct alignment after 2 years 3 months. The erupted incisor remained vital and responded normally to percussion, mobility and sensitivity testing. The soft tissue, periodontal attachment, gingival contour and probing depths were normal. Follow-up radiographs confirmed the continued development of the root, with revascularization of the pulp and a normal appearance of the periodontal space and lamina dura. There was, however, shorter root formation and a narrower root cavity compared with the contralateral incisor. As a result, no orthodontic traction and alignment were required.

This method of surgical repositioning is a viable alternative to the traditional approach of extraction or surgical exposure followed by orthodontic traction for a developing maxillary permanent central incisor in a horizontal position.


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