Fahimeh Farzanegan - Professor, Dental Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
Farnaz Zia - Resident, Department of Orthodontics, Mashhad University of Medical Sciences, Mashhad, Iran
Lohrasb Dehghani - Resident, Department of Orthodontics, Mashhad University of Medical Sciences, Mashhad, Iran
Milad Zarei - Resident, Department of Orthodontics, Mashhad University of Medical Sciences, Mashhad, Iran

Aim: This study aimed to investigate the effect of growth modification treatments on oral health-related quality of life in adolescents aged ۱۱ to ۱۴ years with Class II malocclusion. Methods: Eighty people participated in this case-control study. The case group (n=۴۳) included adolescents with a history of Class II malocclusion treated with growth modification. The control group consisted of ۳۷ adolescents with Class II malocclusion who were not treated. Both groups were given a translation of the Child Perception Questionnaire (CPQ), measuring the quality of life in four domains: oral symptoms, functional limitations, psychological health, and social well-being. Data were statistically analyzed by SPSS software and a significance level of ۰.۰۵ was considered. Results: The oral health-related quality of life of the case group was better than the control group in all areas although this difference was not statistically significant (P=۰.۲۰۴). Conclusion: The oral health-related quality of life between two groups was not different; however, the difference in mental health components between the two groups was clinically negligible.

Quality of Life, Malocclusion, Angle class II, Adolescent, oral health