Periodontal Disease Index


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Related to Periodontal Disease Index: Russell's periodontal index, periodontal indices

Per·i·o·don·tal Dis·ease In·dex (PDI),

an index used for estimating the degree of periodontal disease based on the measurement of six representative teeth for gingival inflammation, pocket depth, calculus and plaque, attrition, mobility, and lack of contact.

periodontal disease index

a measure developed by Siguard Ramfjord in 1959 based on Russell's Periodontal Index. The index utilizes objective measures of plaque, calculus, and observed physical characteristics of the gingiva and periodontium. Six teeth (3, 9, 12, 19, 25, 28) called Ramfjord's teeth are selected and evaluated. Gingiva is evaluated first with the observation of changes in color, form or shape, presence or absence of stippling, and consistency, followed by measurement of gingival crevice depth.

Per·i·o·don·tal Dis·ease In·dex

(PDI) (perē-ō-dontăl di-zēz indeks)
Measurement used to estimate degree of periodontal disease based on measurement of six representative teeth for gingival inflammation, pocket depth, calculus and plaque, attrition, mobility, and lack of contact.
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