title: Prevalence of gingivitis among school attendees in Qazvin, Iran.
abstract: OBJECTIVE
  The purpose of this study was to determine the gingival status in six to nine years old (6-9 years).
  
  
  METHODS
  A Total (n=792) patients comprised 396 girls and 396 boys between 6-9 years were selected from school in Qazvin. Names, ages, sex, addresses and gingival status of each patient were recorded in separate questionnaires. Intra oral examinations were performed with mirror, probe and good light.
  
  
  RESULTS
  Among total n=792 patients, the female were 396 (50%) and male were 396 (50%). The prevalence of gingivitis was 97% (in 6-7 years), 98.1% (7-8 years), 98.5% (in 8-9 years) and 97.9% in all groups.
  
  
  CONCLUSIONS
  In present study the frequency of gingivitis was found to be higher. According to the high prevalence of gingivitis the most prevalent areas of plaque and gingivitis identified in this study should be taken in consideration during oral hygiene instructions, which should be given to children, parents, and teachers.
authors.affiliation: Department of Periodontics and Preventive Dentistry, Faculty of Dentistry, Qazvin University of Medical Sciences, Qazvin, Iran. jhamissi@qums.ac.ir
authors.forename: Hamissi
authors.initials: H
authors.lastname: Jalaleddin
authors.forename: Golam Hosein
authors.initials: GH
authors.lastname: Ramezani
mesh_terms: D002648:Child; D005260:Female; D005891:Gingivitis / Q000453:epidemiology*; D006801:Humans; D007492:Iran / Q000453:epidemiology; D008297:Male; D009910:Oral Hygiene / Q000706:statistics & numerical data*; D010512:Periodontal Index; D015995:Prevalence; D012574:Schools; D017678:Sex Distribution; D011795:Surveys and Questionnaires