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. 2014 Jan 1;19(1):e15-9.
doi: 10.4317/medoral.19096.

Cross-sectional study of malocclusion in Spanish children

José-Manuel Almerich-Silla  1 , José-María Montiel-Company, Carlos Bellot-Arcís, Neus Puertes-Fernández
Affiliations

Cross-sectional study of malocclusion in Spanish children

José-Manuel Almerich-Silla et al. Med Oral Patol Oral Cir Bucal. .

Abstract

Objectives: This study was conducted to determine the orthodontic treatment need of the child population of the Valencia region of Spain, employing the DAI and the IOTN, to examine the relations between treatment need, socio-economic data and gender and to assess the diagnostic agreement between the two indices.

Study design: A cross-sectional descriptive study was conducted in a random representative sample of the schoolchild population of the Valencia region of Spain. The sample size was a total of 765 children aged 12 and 15 years at 39 schools.

Results: The orthodontic treatment need assessed by the DAI was 21.7% at 12 years of age and 14.1% at 15 years. The orthodontic treatment need assessed by the IOTN DHC was 20.9% at 12 years of age and 12.7% at 15 years. The diagnostic agreement between the DAI and the modified IOTN was moderate, with Kappa scores of 0.426 at 12 years of age and 0.415 for the 15-year-old group.

Conclusions: Approximately 20% of the children needed orthodontic treatment. Neither gender nor social class appeared to exert a significant influence on orthodontic treatment need.

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Conflict of interest statement

Conflict of interest statement: The authors have declared that no conflict of interest exist.

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