Translation, cross-cultural adaptation, and psychometric properties of the Finnish version of the Malocclusion Impact Questionnaire (MIQ).

ABSTRACT:

Objectives

This study aimed to translate and adapt the Malocclusion Impact Questionnaire (MIQ) into Finnish; to estimate its psychometric properties when applied to Finnish adolescents; and to estimate the effect of demographic characteristics on the perceived impact of malocclusion.

Methods

The Finnish version of MIQ (MIQ-Fi) was established through translation, back-translation, and a pilot study. Psychometric properties were estimated using factorial validity (confirmatory factor analysis [CFA]), convergent validity (Average Variance Extracted [AVE]), and reliability (αordinal and ω). Structural Equation Model estimated the effect of demographic characteristics on malocclusion impact.

Results

A total of 268 Finnish adolescents participated in the study (mean age = 

SUBMITTER: Campos LA 

PROVIDER: S-EPMC11808814 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature