ABSTRACT

Objectives

To determine factors that could predict Class II/1 malocclusion patient compliance during functional treatment.

Materials and Methods

The sample consisted of 77 subjects (aged 11–13 years; 47% girls) presenting with Class II/1 malocclusion. Inclusion criteria were distal molar relationship, overjet greater than 5 mm, and confirmed pubertal growth spurt. Removable functional appliances (62% Twin Block [TB], 38% Sander Bite Jumping [BJ]) with built-in maxillary expansion screws were used. Follow-up period was 1 year. Patients and parents independently filled out the Child Perception Questionnaire, Parental/Caregiver Perception Questionnaire, and Family Impact Scale to assess emotional and social well-being, oral symptoms, functional limitations, parental emotions, family activities, conflicts, and financial burden as possible predictors of compliance during treatment. Sex, overjet, and appliance type were also analyzed.

Results

There were more noncompliant than compliant patients (55% vs 45%). Parental perception of altered emotional well-being of their children was the strongest predictor, increasing compliance odds 3.4 times (95% confidence interval [CI], 1.2–9.4; P = .017). Patients were 3.2 times (95% CI, 1.1–9.3; P = .033) more likely to cooperate with TB compared with BJ appliance. OJ ≥ 8 mm increased compliance odds 3.1 times (95% CI, 1.0–9.4; P = .044).

Conclusions

Parental perception of child's emotional well-being alteration, severity of malocclusion, and type of appliance are major predictors of compliance. Psychosocial issues and oral function limitations reported by children and family impact are of negligible influence.

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Author notes

a

Assistant Professor, Department of Orthodontics, Faculty of Dental Medicine, University of Belgrade, Belgrade, Serbia.

b

Resident, Department of Orthodontics, University Dental Clinic, Clinical Hospital Center, Rijeka, Croatia.

c

Dentist, Community Health Center of Primorsko-Goranska County, Rijeka, Croatia.

d

Research Fellow, Department of Orthodontics, University Dental Clinic, Clinical Hospital Center. Research Fellow, Department of Orthodontics, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia.

e

Professor, Department of Orthodontics, University Dental Clinic, Clinical Hospital Center, Rijeka, Croatia. Professor, Department of Orthodontics, Faculty of Dental Medicine, University of Rijeka, Rijeka, Croatia. Professor, Department of Dental Medicine, Faculty of Dental Medicine and Health, J. J. Strossmayer University of Osijek, Osijek, Croatia.