Acceptance of Orthodontic Therapy according to the Aesthetic Component of the Index of Orthodontic Treatment Need among Schoolchildren - a CrossSectional Study

Ruzica Zovko, Kristina Gorseta, Stipo Cvitanovic, Mirela Mabic, Anka Coric, Zdenko Sarac, Domagoj Glavina


Objective. Orthodontic anomalies with impaired facial aesthetics and disturbed oral functions have a major effect on emotional and social development. It is necessary to determine the degree of acceptance of treatment. This study includes an evaluation of the Index of Orthodontic Treatment Need (IOTN) according to the Aesthetic Component (AC) of dental health in schoolchildren.

Methods. The research included 300 schoolchildren (150 girls, 150 boys) with an age range from 12 to 15 years. An evaluation of the need for orthodontic treatment according to the AC consisted of a ten-grade scale illustrated with a sequence of ten intraoral photographs showing different degrees of acceptability of dental appearance. Results were expressed as absolute and relative frequencies. The Chi-square test (in the absence of the expected frequencies of Fisher’s Exact test) was used for testing the significance of differences. Cohen’s kappa statistic measure was used for measuring the agreement between the children and

Results. There is a significant substantial agreement between children and dentists in assessing the need for orthodontic treatment. Differences in assessment of the degree of orthodontic anomalies by the doctor of dental medicine with respect to boys and girls, are negligible, and statistical analysis did not show any significant difference. Analysis of the need for orthodontic treatment with respect to the age of the children showed a significant difference.

Conclusion. The need for orthodontic treatment is more pronounced in older children, and there is no difference between boys and girls.


Orthodontic Anomalies; Aesthetic Component (AC); Index of Orthodontic Treatment Need (IOTN)

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