PI+Index

Category of Indices: Periodontal/Irreversible
====Periodontal index (PI) was developed by A. L. Russel, to measure the advance stages of periodontal disease. At the time of its creation there were no indices to adequately measure periodontal disease. PI can be used epidemiologically to find the prevalence or do a comparison of the periodontal health of a population. To perform the test the equipment needed is a good light source approximate color of the sun, mouth mirror, supplemented by Jacquette scaler and chip blower for demonstration of periodontal pocket. It can be used for individual and population analysis.==== ====Procedure: An examination each tooth surrounding tissue is given a score according to a specific scale given below Table (1). A tooth with no inflammation and has full function is considered a negative and is given a 0. Simple gingivitis is either a 1 or 2 where if there is inflammation but does not surround the tooth it is a 1, if the inflammation surrounds the tooth it is a 2. A 4 can only be given when a clinical test is given and radiographs are present. The radiographs should present an early notch like resorption of the alveolar crest. A 6 is gingivitis with pocket formation where the epithelia attachment has been broken, there is normal masticatory function and the tooth is firm and has not drifted. An 8 is given when a advanced destruction with loss of masticatory function, the tooth is loose, may have drifted, may sound dull on percussion with a metallic instrument; may be depressible in its socket. Upon completion of the scoring of each tooth, the scores are added and divided by the number of teeth. 0: Negative. Neither overt inflammation nor loss of function caused by the destruction of supporting tissue is noted.====

· 3.8-8.0: Terminal periodontal disease.
Krapp K.,Cegage G. (2002). Dental indices. //Encyclopedia of Nursing & Allied Health Education//. Retrieved from: http://www.enotes.com/nursing-encyclopedia/ dental-indices Russel A.L., (1956). A system of classification and scoring for prevalence surveys of periodontal disease. //Journal of Dental Research,// 35: 350 DOI: 10.1177/00220345560350030401


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