ABSTRACT
Objective:To investigate the influence of type A behavior in the occurrence and development of chromic periodontitis and compare the differences among people with different behavior types in the occurrence and development of chronic periodontitis, and to explore the influence of psychological factors in the process of periodontitis.Methods:According the same standard,132 patients with periodontitis were selected as periodontitis group,and 126 patients without periodontitis were used as control group.OralSurveys Basic Methods proposed by WHO in 1987 and ReferenceStandard of Diagnosis and Treatment of Periodontitis made by AAP in 2000 were used to dignose the periodontitis.All subjects finished type A behavior and SCL-90 questionnaire (ZHANG Boyuan 1983,revision in 1985 ), their scores were recorded and the results were analyzed by t test. Results:The proportion of type A behavior in periodontits group (68.94%)was higher than that in control group (27.78%) (P<0.05)compared with type M and type B behavior.The scores of hostility (1.54±0.38),anxiety (1.47± 0.39),depression (1.41 ± 0.37),interpersonal sensitivity (1.23 ± 0.39),compulsive (1.72 ± 0.46),and somatizition (1.47 ± 0.38)were significantly higher than those in control group (1.32 ± 0.30, 1.29 ± 0.24, 1.25±0.23,1.04± 0.17,1.41 ± 0.35,1.25 ± 0.24).The calculus index (CI)of the people with type A behavior was higher than those of the people with other types of behavior (P<0.05).Conclusion:The people with tyep A behawior is easier to get periodontitis than other people.