Posts Tagged ‘ lip incompetence ’

Lip Incompetence, Mentalis Strain, and Class II High-Angle Ortho Patients – The Airway Trifecta

Introduction Dr. Amanda of Straight Smile Solutions explains the close relationship between lip incompetence and mentalis strain, a combination frequently seen in Class II, high-angle orthodontic patients. Lip incompetence refers to the inability to maintain a closed mouth posture at rest, often forcing the chin muscle (mentalis) to work overtime. Understanding which condition comes first […]