What Is Medical CPI?

The community periodontal index is a simple and repeatable periodontal health checkup method suitable for large-scale oral epidemiological investigations.

CPI

(Medical Index)

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Community periodontal index is a simple operation, good repeatability, suitable for large-scale

Ainamo et al. (1982) proposed the community periodontal index, which was used by the World Health Organization (WHO) to establish a database of periodontal disease prevalence in various countries. The designers of CPI believe that the transition from periodontal tissue to a healthy state is a continuous process, that is, from gum inflammation (bleeding), development of calculus, shallow periodontal pockets and deep periodontal pockets. Therefore, the tooth surface with tartar is also considered positive for probing hemorrhage, and those with medium or deep periodontal pockets are also recorded as having gum bleed and tartar. However, the results of the study showed that 18% of the teeth with calculus did not actually have gingival bleeding; 54% had periodontal pockets without tartar and 13% had no bleed.

CPI is only suitable for coarse screening of large sample populations. According to the number of diseased sections and conditions, determine the population's need for periodontal treatment and dental manpower planning, etc., and for the degree of periodontal disease and related risk factors Does not provide a sufficient amount of information. ^[1]

0 = Gum health

1 = Gingivitis, bleeding after visit

2 = calculus, calculus can be found on inspection, but the black part of the probe is exposed outside the gingival pocket

3 = Early periodontal disease, the gingival margin covers the probe with a black part, and the depth of the gingival pocket is 4-5mm

4 = Advanced periodontal disease, the black part of the probe is completely covered by the gingival margin, and the periodontal pocket depth is 6mm or more

X = Excluded section (less than two functional teeth exist)

9 = Unable to check (not record) ^[2]