806203.fig.002
Figure 2: Legan-Burstone soft tissue analysis: lip position. Nasolabial angle (Cm-Sn-Ls); upper lip protrusion (Ls to Sn-Pg′); lower lip protrusion (Li to Sn-Pg′); mentolabial sulcus (Si to Li-Pg′); vertical lip-chin ratio (Sn-Stms/Stmi-Me′); maxillary incisor exposure (Stms-UI); interlabial gap (Stms-Stmi).