Also known as SJW fish mouth syndromeTexAgs91 said:Poor guy suffers from lip Incompetencecaptkirk said:http://www.oralmyology.com/open_mouth.htmQuote:
An orofacial variation that relates to the lips is an Open Mouth-Lips Apart resting posture. This is often referred to as lip Incompetence and can distract from a pleasing facial appearance. Most common is the Short (Arched) Upper Lip combined with a pouty fuller (large) lower lip causing the facial muscles to compensate and function incorrectly. In order to swallow, the lower lip must stretch up to meet the upper lip causing a facial grimace or button chin.