engleski

Orthognatic Quality of Life Questionnaire – validation of Croatian version of diagnostic instrument in adolescents and adults

AIM: To validate diagnostic instrument used to assess quality of life in patients with dentofacial deformities in Croatian cultural context. SUBJECTS AND METHOD: The validation of the Orthognathic Quality of Life Questionnaire (OQLQ) after forward-backward translation was performed on convenient sample of 405 examinees. The sample consisted of students and employees of University of Rijeka and patients of University Dental Clinic (34% male) aged 16-41 years (median 21, interquartile range 20-24). Dentofacial characteristics were assessed by the Index of Complexity, Outcome and Need and Index of Orthodontic Treatment Need. Self-administrated questionnaires included self-perceived satisfaction with facial appearance and teeth function, Oral Health Impact Profile (OHIP) and Brief Symptom Inventory. Explanatory factor analysis, correlations and paired samples t-test were used for data analysis. RESULTS: Factor analysis detected four subscales of OQLQ similar to the original instrument with adequate internal consistency (Cronbach α in range 0.71-0.85), but in Croatian cultural context it would benefit if three items were omitted. Convergent validity indicates that Oral function (OF) domain measures the construct similar to OHIP, Facial esthetics (FE) similar to satisfaction with facial esthetics, Social aspect (SA) correlates with depression and Awareness of facial esthetics (AW) with somatization ranging from 0.331-0.466 (p<0.05). Correlations with orthodontic indices were not significant. Test-retest reliability was high (r=0.805-1.000 ; p<0.001). In the responsiveness testing, changes induced by orthognathic surgery in patients with dentofacial deformities were detected in domains FE, SA and AW (p<0.05), but not for OF domain. CONCLUSION: The Croatian version of the OQLQ has satisfactory metric properties and is thus applicable for use.

orthognatic; quality of life; perception

Rad financiran potporom Sveučilišta u Rijeci 13.06.2.1.53 "Prediktivni čimbenici uspjeha ortodontske terapije u djece i adolescenata". Prva nagrada na 2. Međunarodnom kongresu Stomatološkog fakulteta i Academy of Operative Dentistry European Section u Zagrebu, 5.3.2016.