TABLE 1.

Anthropometric landmarks in orolabial region

Abbr.	Landmark	Definition
sn	Subnasale	Midline point at the junction of the lower border of nasal septum and the superior border of upper lip
cphR	Crista philtra right	The junction of vermilion and right lateral philtrum crest
cphL	Crista philtra left	The junction of vermilion and left lateral philtrum crest
ls	Labrale superius	Midline point of upper vermilion border
chR	Cheilion right	Midline point at the right end of labial fissure
chL	Cheilion left	Midline point at the left end of labial fissure
sto	Stomion	Midline point at the labial fissure
li	Labrale inferius	Midline point of lower vermilion border
sl	Sublabial	The most posterior midline point at the labiomental region