Fig. 2

The measurement differences between the analogue and digital methods were examined in detail regarding the different tooth groups and different measurement criteria. A: Differences between digital and analogue measurements [mm] for the different groups of teeth. The premolars show the greatest deviation and the canines the smallest; molars IQR: 0.10, median: -0.10; premolar IQR: 0.00, median:-0.10; canines IQR: 0.00, median: -0.10; incisors IQR: -0.10, median: 0.00 B: A comparison of the observed absolute difference between the digital and analogue methods for tooth width (IQR: -0.10, median: 0.00), crown height (IQR: 0.40, median: 0.20), overjet (IQR: 0.00, median: 0.00) and overbite (IQR: 0.50, median: 0.00) and arch dimensions (IQR: 0.30, median: 0.10). The largest measurement difference can be seen in the arch dimensions, while the smallest measurement difference is in the tooth widths