The periodontal disease index is a clinicians modification of russell s pi in dex for epidemiological surveys of perio dontal disease. It is routinely carried out in dentistry and allied specialties. Many different techniques are used around the world. A periodontal examination is a clinical examination of the periodontium gums. Periodontal health was recorded following the community periodontal index of treatment needs cpitn, and treatment need was assigned. The community periodontal index cpi, which was originally developed by the world health organization to measure community oral health, is. The diagnostic criteria employed in three of these indices are described in tables 2 to 4. Introduction the periodontal index pi was developed by russel a. Oral cleanliness was assessed using the plaque index of silness and loe, while. The reliability of several of the indices has been tested.
Periodontal status and treatment need among adolescents in ibadan. Recording and surveillance systems for periodontal diseases. Contrary to russells periodontal index, the periodontal disease index was essentially a clinical tool that used a periodontal probe 66, with marks at 3, 6 and 8. Epidemiology and indices of gingival and periodontal disease aapd.
Periodontal disease should be measured using loss of attachment, not pocket depth. Evaluation of periodontal status and treatment needs of. By using indices which have been carefully defined, comparisons can be made between different population groups. The pdi index is primarily concerned with an accurate assessment of the periodontal status of the individual per son. View the article pdf and any associated supplements and figures for a period of 48 hours. Emphasis is placed on recording of the attachment level of the periodontal tis.
The unit of study in epidemiology is the population, and not the individual. Epidemiology and indices of gingival and periodontal disease. The community periodontal index for treatment needs is thus a valuable tool in. Russell insofar as the word clinical connotes therapy or treatment, a discussion of the periodontal index pi is out of place in a conference on clinical methods. School of public health and school of dentistry, university of michigan. These systems have aimed at expressing the gingival andor periodontal states in numerical values or indices. A periodontal examination is a clinical examination of the periodontium. Comparison of the periodontal index pi and community.