My lower third looks big when viewed from the front due to downward growth of my mandible. I've managed to shorten my lower third by practicing mewing for the past 9 months. Can I shorten/upswing my mandible to the ideal length if I religiously mew and chew? Also can widening of face give the effect of a relatively smaller lower third? My face is very narrow.
As for the widening of the face, it may give the appearance of a relatively smaller lower third by creating a more balanced facial structure, yes.
But to get your mandible to the ideal length is difficult, because mewing gets you closer to your genetic potential, but it is not known whether it is possible to fully reach your genetic potential if you don't mew since an infant.
Keep mewing anyways;)
