title: [Investigation and analysis of depression occurrence in patients with chronic periodontitis].
abstract: OBJECTIVE
  To investigate and analyze the depression of patients with chronic periodontitis.
  
  
  METHODS
  The subjects were divided t into two groups-those with chronic periodontitis and those with healthy periodontal (control group). Each subject was evaluated by questionnaire, the value of each questionnaire with Depressive Experiences Questionnaire (DEQ) and Zung Self-rating Depression Scale (SDS) was obtained and the average value of each group's DEQ-A (dependent factor), DEQ-I (self-criticism factor) and SDS was calculated. SPSS13.0 software package was used to analyze the data.
  
  
  RESULTS
  The average SDS value in the chronic periodontitis group was significantly higher than that in the control group, the average DEQ -A and DEQ-I value of chronic periodontitis group was also significantly higher. The average DEQ and SDS value in the severe chronic periodontitis group was significantly higher than that in the mild group(P < 0.05).
  
  
  CONCLUSIONS
  Depression has some relationship with chronic periodontitis. DEQ-A,DEQ-I and SDS are significantly different between severe chronic periodontitis patients and mild chronic periodontitis patients; Compared with the control group,the scores of both the anaelitic depression and introjective depression factors in the chronic periodontitis group increase significantly. Supported by Research Fund of Department of Science and Technology of Hengyang City of Hunan Province(2009KS34).
authors: Department of Stomatology, The Second Affiliated Hospital of Nanhua University, Hengyang 421001, Hunan Province, China. 8997858@qq.com
authors: Yun-huan
authors: YH
authors: Tang
authors: Fang-yun
authors: FY
authors: Cao
mesh_terms: D055113:Chronic Periodontitis; D003863:Depression; D006801:Humans; D011594:Psychometrics; D011795:Surveys and Questionnaires