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Table 5 Validation of PESS capability to predict the treatment outcome of teeth with AP

From: Prognostic validity of the Periapical and Endodontic Status Scale for the radiographically assessed 2-year treatment outcomes in teeth with apical periodontitis: a prospective clinical study

Baseline treatment risk groups, n Sensitivity, % (95%CI) Specificity, % (95%CI)
Low risk, 140 79 (54–94) 87 (80–92)
Moderate risk, 32 88 (82–92) 80 (52–96)
High risk, 4 99 (96–100) 50 (68–93)