PI+Index

** How to use PI? **
=== Perform a clinical exam with a periodontal probe and diagnostic radiographs. Give each tooth assessed score of 0-8 and then average scores to determine index ( for a population, average all individual scores). The higher the score the higher the incidence of periodontal disease. ===
 * === 0: Negative. Neither overt inflammation nor loss of function caused by the destruction of supporting tissue is noted. ===
 * === 1: Mild Gingivitis. Overt inflammation in the free gingiva is present, but does not circumscribe the tooth. ===
 * === 2: Gingivitis. Inflammation surrounds the tooth, but there is no apparent break in the epithelial attachment. ===
 * === 6: Gingivitis with pocket formation. The epithelial attachment of gum to tooth is broken. There is no interference with normal function. The tooth is not loose or drifting. ===
 * === 8: Advanced destruction with loss of function. The tooth may be loose or drifting. It may sound dull on percussion and may be depressible in the socket. ===

Scores for each tooth are added, and the total divided by the number of teeth examined. Scores can be interpreted as follows:

 * === 0-0.2: Clinically normal supportive tissues. ===
 * === 0.3-0.9: Simple gingivitis. ===
 * === 0.7-1.9: Beginning destructive periodontal disease. ===
 * === 1.6-5.0: Established destructive periodontal disease. ===