Application of the Community Periodontal Index of Treatment Needs (CPITN) in a population of young Brazilians

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Abstract
Recently WHO has launched an index for assessing the periodontal treatment needs of a population in terms of resources required. This Community Periodontal Index of Treatment Needs was applied in 308 Brazilian 15-yr-old schoolchildren from a population with a high prevalence of periodontitis. The results showed that all subjects needed some kind of care. Totally, 4133 time units were required. Most of the time needed was for motivation and instruction in oral hygiene, and scaling. Several individuals assigned for complex treatment due to pockets deeper than 5.5 mm showed no signs of radiographic bone loss, and in the cases with bone loss, the lesions were few and small. The CPITN therefore seemed to overestimate the need for treatment in this young population. To overcome this problem, it was suggested that complex treatment should not be included in planning of systematic periodontal care for young populations, and that subjects with true periodontal lesions should be given priority in community programs.