1 Assistant Professor, Department of Orthodontics, Member of Mashhad Dental Research Center, Mashhad University of Medical Sciences, IRAN

2 Associate Professor, Department of Public Health, Mashhad University of Medical Sciences, IRAN

3 Post graduate student, Oral Pathology, Faculty of Dentistry, Shiraz University of Medical Sciences, IRAN



Aim: A successful orthodontic treatment depends on a variety of Factors such as patient cooperation. Prediction of patient cooperation could be helpful for anticipating problems that might arise during treatment and alleviating them before they can interfere with treatment. Thus the aim of present study was to determine the relationship between psychological factors and cooperation of orthodontic patients.
Methods and Materials: In this cross-sectional study, 48 Class I female fixed orthodontic patients (13-17 years old) were selected. For all patients Eyesenck questionnaires were completed and personality status of each patient for extroversion, neuroticism, psychoyicism and lie was determined. Patients' cooperation was also assessed through evaluating patients' folders in the first year after treatment using Orthodontic Patient Cooperation Scale. Finally, Spearman correlation test and t- test were used for statistical analysis.
Results: The results of present study revealed that there exists a negative relationship between Extraversion (E), Neurosis (N) and Psychosis(P) traits of the Juvenile Eyesenck Personality Test(See Appendix) with patients' cooperation in the girls and a positive relationship between Lying trait(L) of the test and the cooperation. However, the results of Spearman correlation test showed there were no significant differences between patients' cooperation and PEN and L trails of the Juvenile Eyesenck Personality Test (p-value> 0.05).
Conclusion: Orthodontic patients' psychological features could not predict their cooperation exactly.