Figure 2.

Precision score by the two groups. A perfect score could be achieved by removing all 8492 ‘amelodentinal junction (ADJ) caries’ voxels without any other damage. The score was calculated by counting the number of ADJ caries voxels removed and subtracting any healthy (dentine and enamel) voxels. Error bars represent 95% CI. The difference in precision score between students (n=112) and clinicians (n=17) was −19.65% (95% CI −13.9% to −12.2%). Students removed a mean percentage of 19.69%±27.38%, clinicians 39.34%±34.1%.