Mouth Partially Open at Rest: Causes, Orofacial Pathophysiology, and Management
1. Introduction to Lip Incompetence A mouth partially open at rest, clinically defined as lip incompetence, is a condition where an individual is unable to maintain a closed lip seal without exerting conscious, strained muscular effort. In a physiologically optimal state, the lips should rest gently together, facilitating obligate nasal breathing and maintaining the internal … Read more