title: Correlations between two different methods to score bleeding and the relationship with plaque in systemically healthy young adults.
abstract: OBJECTIVE
  To evaluate the correlation between bleeding on marginal probing (BOMP) and bleeding on pocket probing (BOPP), and the correlation of both bleeding indices with plaque.
  
  
  METHODS
  This cross-sectional study screened 336 participants, from which 268 were eligible for examination and analysis. Bleeding and plaque indices were assessed by single examiners, at six sites per tooth.
  
  
  RESULTS
  The mean percentage of sites per individual with bleeding on marginal probing, bleeding on pocket probing and dental plaque were 19.9%, 51.2% and 32.2% respectively. In the quadrants where the margin was probed before the pocket, a 4.6 percentage points higher bleeding tendency with BOPP was observed (p < 0.05). At a site level, the correlation coefficients of plaque and bleeding on marginal probing and bleeding on pocket probing were 0.19 and 0.20 respectively. Both bleeding indices were also shown to be correlated (r = 0.89, fixed effect model).
  
  
  CONCLUSIONS
  The prevalence of bleeding upon probing is influenced by the scoring method that is used for the diagnosis. Probing the bottom of the pocket results in significantly more bleeding than running a probe along the margin.
authors.affiliation: Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Amsterdam, The Netherlands.|Department of Social and Preventive Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: Sara Cioccari
authors.initials: SC
authors.lastname: Oliveira
authors.affiliation: Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Amsterdam, The Netherlands.
authors.forename: Dagmar E
authors.initials: DE
authors.lastname: Slot
authors.affiliation: Department of Social and Preventive Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: Roger Keller
authors.identifier: http://orcid.org/0000-0002-2468-6655
authors.initials: RK
authors.lastname: Celeste
authors.affiliation: Department of Social and Preventive Dentistry, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
authors.forename: Claides
authors.initials: C
authors.lastname: Abegg
authors.affiliation: Department of Preventive Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Amsterdam, The Netherlands.|Microbial Genomics Group, TNO Quality of Life, Business Unit Food and Biotechnology Innovations, Zeist, The Netherlands.
authors.forename: Bart J F
authors.initials: BJ
authors.lastname: Keijser
authors.affiliation: Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije University Amsterdam, Amsterdam, The Netherlands.
authors.forename: Fridus A
authors.initials: FA
authors.lastname: Van der Weijden
mesh_terms: D003430:Cross-Sectional Studies; D003773:Dental Plaque / Q000175:diagnosis; D003774:Dental Plaque Index; D005260:Female; D005891:Gingivitis / Q000175:diagnosis; D006470:Hemorrhage; D006801:Humans; D008297:Male; D010512:Periodontal Index; D055815:Young Adult
keywords: bleeding; cross-sectional study; gingivitis; index; plaque