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The Use of Six Selected Teeth in Population Measures of Periodontal Status
Author(s) -
Gettinger G.,
Patters M. R.,
Testa M. A.,
Löe H.,
Anerud A.,
Boysen H.,
Robertson P. B.
Publication year - 1983
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.1983.54.3.155
Subject(s) - dentition , dentistry , medicine , orthodontics , periodontal disease , anterior teeth , population , epidemiology , calculus (dental) , tooth loss , oral health , environmental health
S elected teeth have been used to respresent the entire dentition in many epidemiological and clinical investigations. The present study sought to assess the relationship between the six selected teeth described by Ramfjord and the entire dentition for the Plaque Index, Gingival Index, Calculus Index and Loss of Attachment. The computations were performed on measurements obtained in investigations of the natural history of periodontal disease in Norway and Sri Lanka. A consistently strong correlation was observed between the tooth subset and whole mouth for all indices in both populations. This relationship persisted even though single members or pairs of the subset of teeth were removed from the calculations. Some bias, however, was observed with all indices. Plaque and gingival indices obtained from the six teeth underestimated whole mouth scores in the low range (<1.0) and overestimated scores in the high range (>2.0). Use of the tooth subset for calculus and loss of attachment consistently overestimated scores for the entire dentition.