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. 2021 Mar 3;21(5):1741. doi: 10.3390/s21051741

Table 3.

Cut-off value and validity of |ΔFmax| and ΔRmax for detecting dental caries and crack.

Total Number
of Teeth 		Cut-Off Value Sensitivity Specificity AUROC
Occlusal dental caries 177 |ΔFmax| 59.85 0.76 0.74 0.84
ΔRmax 74.50 0.83 0.82 0.91
Proximal dental caries 91 |ΔFmax| 5.95 0.74 0.73 0.81
ΔRmax 0.00 0.83 0.00 0.59
Crack 29 |ΔFmax| 20.80 0.85 0.67 0.83
ΔRmax 39.00 0.75 0.78 0.82