title: [A study of 202 periodontitis subjects in Chengdu].
abstract: OBJECTIVE
  To study the severity of periodontitis and risk factors in Chengdu.
  
  
  METHODS
  202 periodontitis patients (65 male, 137 female), aged from 25 to 60, were requested to fill a questionnaire. Probing depth (PD), clinical attachment level (CAL), gingival recession and bleeding on probing (BOP) on 6 sites of each tooth were measured and recorded.
  
  
  RESULTS
  The mean PD, AL, gingival recession and BOP% of 202 subjects was (3.2 +/- 0.31) mm, (3.5 +/- 0.37) mm, (0.3 +/- 0.02) mm and 21.16%. 59% of subjects missed at least one tooth. 129 subjects suffered with initial to moderate periodontitis. 73 subject suffered with advanced periodontitis. 40, 86, 55 and 21 subjects had received college education, high school education, middle school education and primary school education. 18% of subjects had smoking history, 67% subjects had tea/coffee history, 66% of subjects had psychosocial problem, and only 8% of subjects had received regular periodontal treatment. There is no relationship between the severity of periodontitis and education.
  
  
  CONCLUSIONS
  It is very important to develop an education program on oral healthy for people in Chengdu.
authors.affiliation: Dept. of Periodontology, West China College of Stomatology, Sichuan University, Chengdu, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Huang
authors.forename: Jin-cai
authors.initials: JC
authors.lastname: Zhang
authors.forename: Hai-yun
authors.initials: HY
authors.lastname: Huang
authors.forename: Ruo-yu
authors.initials: RY
authors.lastname: Pang
authors.forename: Gang-gang
authors.initials: GG
authors.lastname: Qi
authors.forename: Xia
authors.initials: X
authors.lastname: Yang
mesh_terms: D000328:Adult; D005260:Female; D005889:Gingival Recession; D006801:Humans; D008297:Male; D008875:Middle Aged; D017622:Periodontal Attachment Loss; D010512:Periodontal Index; D010518:Periodontitis; D012307:Risk Factors