Objective:To evaluate the personality and psychosocial status of adult malocclusion patients through the Eysenck Personality Questionnaire(EPQ) and the Symptom Checklist 90(SCL-90). Methods:The EPQ and the SCL-90 were administered to 348 adult respondents with Angle’s ClassⅠ,Ⅱ,Ⅲmalocclusion and normal occlusion.Personality and psychosocial traits were analyzed and compared among the groups.Results:Patients in Angle’s ClassⅠ,D andⅢgroups scored lower on the EPQ-E and higher on the EPQ-N than those in the normal occlusion group, whereas patients in the Class II group scored higher on the EPQ-P.The mean scores of ClassⅠ,ⅡandⅢgroups were significantly higher than those of the normal group on somatization, obsessive-compulsiveness,interpersonal sensitivity,depression,anxiety,and paranoid ideation. All SCL-90 scores were significantly positively correlated with EPQ-N.Psychoticiam and neuroticism scores of female respondents were higher than those of male respondents.The impact of education was greatest on the EPQ-P and the EPQ-E of adult personality,whereas the impact of deformity was greatest on the EPQ-N of adult personality.Conclusions:Personality and psychosocial status show differences in adult patients with ClassⅠ,Ⅱ,Ⅲmalocclusion and normal occlusion and can be influenced by gender,deformity,age and education.
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