Fig. 4.

Sample cases by the network and the postgraduate students. The standard proximal caries assessed by experts (red boxes), the neural network (green boxes), and the postgraduate students (blue boxes) are shown. Successful detections (red, green, and blue boxes, a–f), false negative detections (red and green boxes only, d–f), and false positive detections (blue boxes only, d–f) of the students.