Is it possible to distinguish between extraction and nonextraction treatments using facial images of adolescents with skeletal Class II malocclusion?

Abstract Background Due to the protrusion of maxillary incisors, skeletal Class II malocclusions can induce an imbalance in lip positioning relative to the face. This study assessed the possibility of distinguishing between treatments with or without extractions of four premolars in facial images of...

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Bibliographic Details
Published in:Journal of the world federation of orthodontists 2015-06, Vol.4 (2), p.52-56
Main Authors: Kochenborger, Claudia, Dias, Vanessa, Martinelli, Fernando Lima, Luiz, Ronir Raggio, de Souza Araújo, Monica Tirre
Format: Article
Language:English
Subjects:
Class II malocclusion
Dentistry
Extraction
Facial harmony
Nonextraction
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Summary:Abstract Background Due to the protrusion of maxillary incisors, skeletal Class II malocclusions can induce an imbalance in lip positioning relative to the face. This study assessed the possibility of distinguishing between treatments with or without extractions of four premolars in facial images of adolescents with skeletal Class II malocclusion. Methods Facial harmony scores at T1 (pretreatment) and T2 (post-treatment) were determined. Results In both groups, there were statistical improvements in the facial harmony scores, which were significantly greater at T1 than at T2. Conclusion The results from this study suggest that it was possible to distinguish between pretreatment and post-treatment facial images of adolescents with skeletal Class II malocclusion.
ISSN:2212-4438
2212-4438
DOI:10.1016/j.ejwf.2015.02.003