Research Article

A Proposed New Index for Clinical Evaluation of Interproximal Soft Tissues: The Interdental Pressure Index

Table 3

Validation criteria results between gingival index (GI) and interdental pressure index (IPI) with different cutoffs.

GI cutoffSensitivitySpecificityPositive predictive valueNegative predictive value

GI = 0 versus GI = 1 + 2 + 30.551.001.000.36
GI = 0 + 1 versus GI = 2 + 30.820.860.820.86
GI = 3 versus GI = 0 + 1 + 21.000.640.271.00