The comparison of personality type between skeletal Class II and Class III in unconscious and conscious patients

Abstract

Personality is the dynamic psycho-physiological organization within the individual that determines the person’s behavior and thoughts. It has become clear that there is a direct relationship between facial appearance and social behavior and social popularity and also according to some research, malocclusion and treatment of malocclusion has an influence on person’s self-esteem, quality of life, his/ her attractiveness in other’s opinion, acceptance by others and being known as a smart person. Various studies show a relationship between the personality type and the jaw and dental abnormalities and their positive changes after treatment but since all the psychological studies were conducted on people who were already aware of their dental or jaw abnormality problems the question arise that whether the mood and personality type of those who were aware of their problem is similar to that of those who were not aware of their abnormality. The answer to this question will clarify that the certain personality traits and behavior and personality changes in people with jaw malocclusion has a hereditary background and is not resulted from the person’s reaction to general stressors and social impacts. Considering the mentioned cases, this study aims to study and compare the influence of class II and class III skeletal abnormalities on the personality types of two groups of people with these abnormalities categorized based on their knowledge of their abnormality problem. Materials and methods40 of the people were selected from the Department of Orthodontics, School of Dentistry in Tabriz and 40 of the people were selected from the other departments of this faculty. People were categorized based on their anomalies, class II and class III by clinical and NHO photography: 1. Class II people unaware of their abnormal situation, 2. Class III people unaware of their abnormality, 3. Class II people aware of their appearance problem, 4. Class III people aware of their appearance problem. Also 40 people who had no abnormalities were considered as the control group. The prepared questionnaires included standard Eysenck tests that were used among the people of each group to analyze their personality type. This test included three scales of extraversion (E), neuroticism (N) and polygraph (L). To compare the results between the three groups of Class III, Class II and normal people Anova variance analysis was used and to compare aware and unaware groups in each of the malocclusion classes the independent T- test was used. Results:Results showed that neuroticism in each of the aware an unaware groups in Class II and Class III was significantly higher in normal people (p<0.05) and extraversion in each of the aware and unaware groups of people in Class II and Class III was significantly less than in normal people (p<0.05). According to the results in this study in both Class II and Class III abnormalities the introversion and neuroticism personality types were significantly lower in the group of aware people (p<0.05).Conclusion:The extraversion and neuroticism personality types in patients with Class II and Class III abnormalities were significantly higher than in normal people. The introversion and neuroticism in patients who were aware of their orthodontic treatments were higher than in unaware people. The personality types in Class II and III were inherent and can consequently change under the environmental and behavioral conditions.