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Korean J Orthod 2007; 37(1): 73-84

Published online February 28, 2007

Copyright © The Korean Association of Orthodontists.

MnBillnry protraction treatment of skeletal Class III children using miniplnte anchorage

Bong-Geun Cha , Nam-Ki Lee , Dong-Soon Choi

Abstract

The maxillary protraction headgear has been widely used in the treatment of skeletal Class III children with maxillary deficiency. A variety of treatment objectives which allow dentoalveolar movements may be established, but when only maxillary protraction without dentoalveolar movement is needed, one of the limitations in maxillary protraction with conventional tooth-borne anchorage is the loss of dental anchorage. This is because a bone remodeling occurs not only at circummaxillary sutures but also within the periodontal tissues. During protraction treatment in the mixed dentition phase, in older children or for the patient with multiple congenitally missing teeth, it is not uncommon to observe undesirable mesial movement of maxillary teeth. Such a side effect can be eliminated or minimized using absolute anchorage such as skeletal anchorage. The purpose of this case report is to introduce a new technique of the maxillary protraction headgear treatment using surgical miniplates. (Korean J Orthod 2007;37(1):73-84)

Keywords: Miniplates,Skeletal anchorage , Class III malocclusion , Maxillary protraction