Orthodontic treatment need in a group of 6–12-year-old children in Szczecin

Liliana Szyszka-Sommerfeld, Monika Machoy, Jadwiga Buczkowska-Radlińska, Krzysztof Woźniak



Introduction: The aim of the study was to assess orthodontic treatment need in a population of children in Szczecin, Poland, and to determine possible factors associated with this need.

Materials and methods: The sample comprised 532 children who had not undergone orthodontic treatment, that were divided into 2 groups: 279 aged 6–8 years and 253 aged 9–12 years. Orthodontic treatment need was assessed using both the dental health component (DHC) and the aesthetic component (AC) of the Index of Orthodontic Treatment Need. Results were analysed using a χ2 test. Multivariate logistic regression analysis was performed to identify relationships between treatment need and independent variables.

Results: Statistically significant differences in definite treatment need based on both components together (DHC ≥ 4 and/or AC ≥ 8) were observed between the 6–8-year-olds and the 9–12-year-olds (14% and 20.6%, respectively; p = 0.044). Factors such as dental abnormalities, Angle’s II molar relationship, increased overjet, crossbite, as well as contact point displacements, were significantly related to a definite need for treatment (DHC grades 4 and 5).

Conclusions: In the analysed population, orthodontic treatment need is similar or lower than that reported in various other European populations. The greater need for orthodontic treatment observed in the 9–12-year-olds highlights the importance of early identification of malocclusions and a timely referral of patients for treatment.


Index of Orthodontic Treatment Need; malocclusion; orthodontic indices

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DOI: https://doi.org/10.21164/pomjlifesci.450

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