title: The relationship between gingivitis and plaque levels.
abstract: Some confusion exists in the literature whether correlations exist between gingivitis severity and plaque levels as measured by the corresponding indices. The results of a clinical trial and a re-analysis of literature data indicate that a strong statistical correlation exists between the Löe-Silness Gingival Index values and both the Löe and the Quigley-Hein Plaque Index measurements. Furthermore, regression analyses also indicate that Löe-Silness Gingival Index can be expressed as linear functions of either the Löe Plaque Index or the Quigley-Hein Plaque Index and that for each unit increment in the mean plaque index values a half unit increase in the gingival index value can be expected.
authors.affiliation: Boston Research and Development, Gillette Company, Gillette Park, MA 02106.
authors.forename: M M
authors.initials: MM
authors.lastname: Breuer
authors.forename: R S
authors.initials: RS
authors.lastname: Cosgrove
mesh_terms: D003753:Dental Health Surveys / Q000706:statistics & numerical data; D003773:Dental Plaque / Q000503:physiopathology*; D003774:Dental Plaque Index / Q000706:statistics & numerical data; D005891:Gingivitis / Q000503:physiopathology*; D006801:Humans; D010512:Periodontal Index / Q000706:statistics & numerical data