Table 3.

Validity of the faster R-CNN model and the postgraduate students in diagnosing proximal caries on bitewings

	TP	FP	FN	TN	Accuracy	Sensitivity	Specificity	PPV	NPV	F1-score
Neural network	388	116	148	1,435	0.87	0.72	0.93	0.77	0.91	0.74
Postgraduate student	253	95	283	1,456	0.82	0.47	0.94	0.73	0.84	0.57

TP, true positive; FP, false positive; TN, true negative; FN, false negative; PPV, positive predictive value; NPV, negative predictive value.