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Fig. 3 | BMC Oral Health

Fig. 3

From: Odontogenic ameloblast-associated protein (ODAM) in gingival crevicular fluid for site-specific diagnostic value of periodontitis: a pilot study

Fig. 3

ROC analysis of ODAM values in GCF for the reflection of sites with PD ≥ 5 mm and positive BOP. ROC analysis for GCF ODAM to reflect the sites with PD ≥ 5 mm and positive BOP were constructed and areas under the receiver operating characteristic curve (AUC) were calculated to compare the predictive ability of the indices. Optimal cut-off values were determined using the Youden index to maximize the sum of sensitivity and specificity

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