Fig. 4
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40902-019-0190-8/MediaObjects/40902_2019_190_Fig4_HTML.png)
Pre (left) and post-surgical (right) 3D scan views; patient undergoing Balcony genioplasty and rhinoplasty; F, Frankfurt plane; P, perpendicular line to the Frankfurt plane; M, depth of the mentolabial fold
Pre (left) and post-surgical (right) 3D scan views; patient undergoing Balcony genioplasty and rhinoplasty; F, Frankfurt plane; P, perpendicular line to the Frankfurt plane; M, depth of the mentolabial fold