The European Journal of Orthodontics Advance Access published online on August 27, 2008
The European Journal of Orthodontics, doi:10.1093/ejo/cjn026
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The impact of orthodontic treatment on the quality of life in adolescents: a case–control study
* Unidad de Investigación en Salud Pública Dental, Departamento de Odontología Social, Universidad Peruana Cayetano Heredia, Perú
** Department of Epidemiology and Public Health, University College London
*** School of Dentistry, University of Manchester, UK
Address for correspondence, Dr Eduardo Bernabé, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London WC1E 6BT, UK, E-mail: e.bernabe{at}ucl.ac.uk
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Abstract |
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The aim of this case–controlled study was to assess the effect of orthodontic treatment on the quality of life of Brazilian adolescents. Two hundred and seventy-nine ‘cases’ (106 males and 173 females) and 558 controls (246 males and 312 females) were randomly selected from 15- to 16-year-old adolescents attending all secondary schools in Bauru, São Paulo, Brazil. A case was defined as having at least one condition-specific impact (CSI) attributed to malocclusion during the previous 6 months, based on the Oral Impact on Daily Performances index. Conversely, a control was defined as having no CSI attributed to malocclusion during the same period. Adolescents were also clinically examined for orthodontic treatment need using the Index of Orthodontic Treatment Need (IOTN) and asked about previous orthodontic treatment. Binary logistic regression was used for statistical analysis.
Females and adolescents with a definite normative orthodontic treatment need were more likely to report CSI than males and adolescents with no normative need [odds ratio (OR) = 1.48, 95 per cent confidence interval (CI) = 1.08–2.02 and OR = 2.02, 95 per cent CI = 2.09–4.47, respectively], whereas adolescents with a history of orthodontic treatment were less likely to report CSI than their counterparts (OR = 0.15, 95 per cent CI = 0.07–0.31). Furthermore, there was an interaction between a history of orthodontic treatment and the current level of normative need. Brazilian adolescents with a history of orthodontic treatment were less likely to have physical, psychological, and social impacts on their daily performances associated with malocclusion than those with no history of orthodontics. Gender was a confounding factor, whereas current level of normative orthodontic treatment need was an effect modifier. Prospective studies are needed to corroborate the present findings.
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  S. Spalj, M. Slaj, S. Varga, M. Strujic, and M. Slaj Perception of orthodontic treatment need in children and adolescents Eur J Orthod, October 27, 2009; (2009) cjp101v1. [Abstract] [Full Text] [PDF]
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