Journal Article

Cephalometric evaluation of Class II malocclusion treatment with cervical headgear and mandibular fixed appliances

M. R. Freitas, D. V. Lima, K. M. S. Freitas, G. Janson and J. F. C. Henriques

in The European Journal of Orthodontics

Published on behalf of European Orthodontics Society

Volume 30, issue 5, pages 477-482
Published in print October 2008 | ISSN: 0141-5387
Published online August 2008 | e-ISSN: 1460-2210 | DOI: http://dx.doi.org/10.1093/ejo/cjn039
Cephalometric evaluation of Class II malocclusion treatment with cervical headgear and mandibular fixed appliances

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The present study aimed to evaluate the cephalometric changes in Class II patients treated exclusively with cervical headgear (CHG) in the maxillary arch and fixed appliances in the mandibular arch as compared with a control group. The sample comprised 82 lateral cephalograms obtained pre- (T1) and post- (T2) treatment/observation of 41 subjects, divided into two groups: group 1—25 Class II division 1 patients (20 females and five males), with a mean pre-treatment age of 10.4 years, treated for a mean period of 2.5 years and group 2—16 Class II untreated subjects (12 females and four males), with a mean initial age of 9.9 years, followed for a mean period of 2.2 years. Treatment changes between the groups were compared by means of t-tests.

The results showed restriction of maxillary forward displacement and also a restriction in maxillary length growth, improvement in the maxillomandibular relationship, restriction of mandibular incisor vertical development, reduction in overjet and overbite, and improvement in molar relationship. It was concluded that this treatment protocol corrected the Class II malocclusion characteristics primarily through maxillary forward growth restriction.

Journal Article.  3221 words.  Illustrated.

Subjects: Restorative Dentistry and Orthodontics

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