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 cutoff | Sensitivity | Specificity | Positive predictive value | Negative predictive value |
| GI = 0 versus GI = 1 + 2 + 3 | 0.55 | 1.00 | 1.00 | 0.36 | GI = 0 + 1 versus GI = 2 + 3 | 0.82 | 0.86 | 0.82 | 0.86 | GI = 3 versus GI = 0 + 1 + 2 | 1.00 | 0.64 | 0.27 | 1.00 |
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