AIM: To know the personality and mental health of the poverty college students. METHODS: 2 400 students of grade 2002, 2003 and 2004 were randomly selected from Fuzhou University, Fujian Normal University, Fujian Agriculture and Forestry University, Fujian Traditional Chinese Medical University and Minjiang College from September to November 2005, including 1 478 schoolboys and 922 schoolgirls with an average age of (20?1) years. According to the prescript of the Message from Fuzhou City Government of Improving the Lowest Life Guarantee Standard of Residents in the City, Town and Country issued by the office of Fuzhou Government in November 4th 2004, 210 Yuan was provided for each one in many-persons family every month and 230 Yuan for single-person family in the town; 155 Yuan was provided for each one in many-persons family every month and 175 Yuan for single-person family in the country. Poverty college student was defined in the paper as the following: Students with lower average family member month income and some debts, who could only afford part of tuition their basic cost of living closed to the lowest life guarantee line in the local residents (230 Yuan was taken as the baseline) were considered as the poverty students. SCL-90 and 16PF were adopted to study the mental health and personality of poverty college students. RESULTS: 2 400 questionnaires were sent out, and 2 111 valid ones were taken back. ① The scores of somatization, compulsion, interpersonal sensitivity, depression, anxiety, hostility, phobia, paranoid, schizophrenia and others as well as the total score of symptom indexes in SCL-90 of poverty college students were significantly higher than those of non-poverty college students Poverty college students: 1.61?0.56,2.02?0.64,1.92?0.63,1.71?0.56,1.65?0.58,1.73?0.68,1.57?0.62,1.81?0.65,1.67?0.54,1.76?0.63,1.74?0.49;Non-poverty college students:1.48?0.45,1.89?0.56,1.79?0.57,1.61?0.51,1.54?0.50,1.61?0.56,1.44?0.49,1.66?0.54,1.54?0.46,1.61?0.53,1.62?0.41,P 0.05). ② The examined rate of psychological problem in poverty college students of Fujian Province was 24.5%, and that of slight psychological problems was 22.6%, and that of moderate psychological problems was 1.7%, and that of severe psychological problems was 0.2%. Among sub-specific factors, the psychological problems were prominent in obsessive-compulsive, interpersonal sensitivity, paranoid, depression, hostility, anxiety, etc. ③ Compare to non-poverty university students, the scores of poverty university students on sociality, intelligence, excitability, sensitivity, suspicion were distinctly lower, while the marks on permanence, anxiety, independence were significantly higher (Poverty college students: 5.20?1.77,4.70?1.93,5.49?1.87,6.46?1.79,4.29?1.71,4.60?1.63,6.64?1.82,5.07?1.82;Non-poverty college students:5.39?1.74,4.95?1.99,5.82?1.91,6.66?1.75,4.55?1.77,4.36?1.69,6.43?1.94,4.89?1.77,P

Objective:To study the effects of periodontal scaling on microorganism in periodontal pocket and gingival crevicular fluid in patients with periodontitis.Methods:60 cases of periodontitis were selected and divided into 2 groups randomly with 30 in each group.The patients in scaling group were treated by periodontal scaling, those in control group by gargle with chlohexidine.Before and after treatment the microorganism in pocket bottom of each patient was measured by Congo red negative dyeing.Gingival index(GI), probing depth(PD) and gingival crevicular fluid(GCF) were also measured, the relationship between periodontal scaling and clinical indices was analysed.Results:In scaling group the percentage of coccoid cells in pocket bottom increased more after scaling,that of bacillus,spirochetes decreased, PD,GCF value were all decreased (P0.05).Conclusion:Periodontal scaling can decrease the percentage of pathogenesis bacteria in periodontal pocket bottom and decrease PD,GI and GCF values.

Objective: To investigate the effect of physical exercise on mental health of college students during the epidemic of COVID-19, and to provide reference for mental health education in special period. Methods: By using basic demographic data questionnaire, physical exercise questionnaire, the Generalized Anxiety Disorder 7(GAD-7) and Patient Health Questionnaire(PHQ-9), an internet-based questionnaire survey was conducted among 1 297 college students in Fuzhou. Pearson correlation analysis and a multivariate Logistic regression model were used for statistical analysis. Results: Among the college students, 58.7% took part in physical exercise more than or equal to three times a week, 27.8% of them took part in physical exercise more than or equal to 30 minutes each time, 55.4% of them had took part in moderate-intensity activity each time, only 16.6% of them reported regular exercise. The overall detection rates of anxiety were 20.0%, with mild, moderate and severe anxiety being 16.4%, 2.3% and 1.2%, respectively. The detection rates of depression were 24.7%, with mild, moderate, moderate-to-severe and severe depression being 18.0%, 4.4%, 1.2% and 1.1%, respectively. The analysis results of multivariate Logistic regression show that college students who had no exercise at present and have no intention of regular exercise in the next 2 months(OR=3.36) and have no exercise at present but plan to start regular exercise in the next 2 months(OR=4.07) or those who exercise occasionally(OR=2.65) are prone to develop mild anxiety(P<0.05). College students who had no exercise at present and have no intention of regular exercise in the next 2 months(OR=5.66, 3.86) were prone to develop mild and moderate depression(P<0.05). Conclusion College students reported certain degree of anxiety and depression during the epidemic of COVID-19. Anxiety and depression are closely related. Participation in physical exercise is associated with their mental health among college students. Universities, families and relevant departments should take measures to promote college students to participate in moderate and regular physical exercise.