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Quintessence Publishing: Journals: ORTHODONTICS
The Art and Practice of Dentofacial Enhancement

Formerly World Journal of Orthodontics

Edited by
Rafi Romano, DMD, MSc (Editor-in-Chief)

ISSN 2160-2999 (print) / ISSN 2160-3006 (online)

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Yearbook 2013
Volume 14 , Issue 1

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Distalization of maxillary molars using a lever arm and mini-implant

Júlio de Araújo Gurgel, DDS, MSc, PhD/Célia Regina Maio Pinzan-Vercelino, DDS, MSc, PhD/Fausto Silva Bramante, DDS, MSc, PhD/Alan Poy Rivera, DDS

DOI: 10.11607/ortho.604

This article describes the orthodontic treatment of a young woman with a Class II malocclusion and maxillomandibular prognathism. One orthodontic mini- implant was placed in the posterior area of the palate to provide anchorage for
a transpalatal arch. The force for molar distalization was applied using an elastic chain from the lever arm inserted on the transpalatal arch to the mini-implant. Two sliding jigs were applied buccally as a complement for Class II malocclusion correction. This system created an efficient mechanotherapy for maxillary molar distalization. The active treatment period was 19 months. Normal overjet and reduction of maxillomandibular prognathism were obtained, and labial balance was improved. ORTHODONTICS (CHIC) 2013;14:e140–e149. doi: 10.11607/ortho.604

Key words: orthodontic mini-implant, Class II malocclusion correction, molar distalization appliance

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