Fig. 7

Bland–Altman plots showing the intra-operator reproducibility of the outcome assessment process. The measured variable was the MAD between the superimposed PDM and FDM models on (A) the palate, (B, C) the maxillary dental arch, and (D) the mandibular dental arch. The axes lengths represent the true range of the measured MAD values. The continuous horizontal green line shows the mean reproducibility of each outcome and the continuous horizontal red lines demonstrate the 95% limits of agreement. The dashed horizontal line indicates the 0 level, and thus, perfect reproducibility. M: Measurement. mm: millimeter