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To explore the relationship between adolescents’ oral health-related quality of life (OHRQoL), satisfaction with smile appearance, treatment need and treatment demand through direct and serial mediation models. This cross-sectional study included 215 11–14-year-olds and their parents. The instruments included the Child Perceptions Questionnaire and the Index of Orthodontic Treatment Need. Satisfaction with smile appearance, orthodontic treatment demand and parental perception of their child’s orthodontic treatment need was recorded on a Likert scale (0 = not at all to 4 = very much). Serial mediation models were used to assess the effects of malocclusion on the OHRQoL. Objective treatment need explained less than 5% of the adolescents’ OHRQoL. Serial mediation models through satisfaction with smile appearance, parental perception of their child’s orthodontic treatment need, and patients’ orthodontic treatment demand explained 23–25% of the variance. Satisfaction with smile appearance mediates the OHRQoL in adolescents. Parents have no direct influence, but their perception of the need to correct their child’s teeth might amplify adolescents’ orthodontic treatment demand, leading to lower OHRQoL.

acta odontologica scandinavica

Satisfaction with smile appearance mediates oral health-related quality of life in adolescents regardless of orthodontic treatment need – a cross-sectional study