# Table 2 Ablation study to quantitatively analyze the contribution of each step in the training procedures: ROI segmentation, pre-training for transfer learning, auxiliary co-occurrence loss and ensembling classification models. The F1 scores are shown for each teeth type and all teeth.

ROI SegmentationPre-trained WeightAuxiliary LossEnsembled NetworkIncisorCaninePremolarMolarAll Teeth
0.640.670.690.650.66
$$\surd$$   0.710.680.680.670.68
$$\surd$$$$\surd$$  0.730.710.670.690.70
$$\surd$$$$\surd$$$$\surd$$ 0.740.720.690.730.72
$$\surd$$$$\surd$$$$\surd$$$$\surd$$0.720.700.750.800.75