Facial Mobility after Maxilla-Mandibular Advancement in Patients with Severe Obstructive Sleep Apnea Syndrome: A Three-Dimensional Study

Table 2

Landmarks employed for the study and their definitions [16].

Landmarks	Abbreviations	Definitions
Superciliare	Sci	The highest point on the upper borderline in the mid-portion of each eyebrow.
Alar curvature point	Ac	The facial insertion of the alar base.
Cheilion	Ch	The point located at each labial commissure.