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Table 3 Accuracy of PRW, RSA, RV, RSA/RL, and RV/RL for detecting normal-rooted and cone-rooted teeth

From: A novel three-dimensional quantitative assessment method for abnormal root morphology of the maxillary premolars in vivo on cone-beam computed tomography

  PRW RSA RV RSA/RL RV/RL
Se 0.73 0.51 0.83 0.95 0.88
Sp 0.85 0.89 0.72 0.72 0.81
PV+ 0.79 0.78 0.69 0.72 0.78
PV− 0.81 0.71 0.85 0.95 0.90
YI 0.58 0.40 0.55 0.67 0.69
LR+ 4.94 4.61 2.99 3.42 4.74
LR− 0.31 0.55 0.24 0.07 0.15
  1. PRW, parameters of root width; RSA, root surface area; RV, root volume; RL, root length; Se, sensitivity; Sp, specificity; PV+, positive predictive value; PV−, negative predictive value; YI, Youden index; LR+, positive likelihood ratio; LR−, negative likelihood ratio