Journal Article

Prediction of the outcome of orthodontic treatment of Class III malocclusions—a systematic review

Piotr Fudalej, Magdalena Dragan and Barbara Wedrychowska-Szulc

in The European Journal of Orthodontics

Published on behalf of European Orthodontics Society

Volume 33, issue 2, pages 190-197
Published in print April 2011 | ISSN: 0141-5387
Published online July 2010 | e-ISSN: 1460-2210 | DOI:
Prediction of the outcome of orthodontic treatment of Class III malocclusions—a systematic review

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The purpose of this study was to systematically review the orthodontic literature to assess the effectiveness of a prediction of outcome of orthodontic treatment in subjects with a Class III malocclusion. A structured search of electronic databases, as well as hand searching, retrieved 232 publications concerning the topic. Following application of inclusion and exclusion criteria, 14 studies remained. Among other data, sample ethnicity, treatment method, age at the start and completion of treatment, age at follow-up, outcome measures, and identified predictors were extracted from the relevant studies. A subjective assessment of study quality was performed.

The heterogeneity of the samples and treatment methods prevented carrying out a meta-analysis. Thirty-eight different predictors of treatment outcome were identified: 35 cephalometric and three derived from analysis of study casts. Prediction models comprising three to four predictors were reported in most studies. However, only two shared more than one predictor. Gonial angle was identified most frequently—in five publications. The studies were of low or medium quality.

Due to the large variety of predictors and differences among developed prediction models, the existence of a universal predictor of outcome of treatment of Class III malocclusions is questionable.

Journal Article.  4487 words. 

Subjects: Restorative Dentistry and Orthodontics

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