Fig. 4

The association of pg.sm.hori with orthodontic treatment and FAR. a Schematic representation of the feature, with the pg.sm.hori angle indicated by a red line. b Density plots of the feature values before (in red) and after (in blue) orthodontic treatment. c, d The correlation between the feature values and c profile and d overall FAR. e, f The correlation between the absolute difference in feature values before and after orthodontic treatment and e the absolute difference in profile and f overall FAR