Can the D.A.O nerve muscle get damaged during facelift and neck liposuction therefore causing a downward smile? (Photo)
Doctor Answers 1
A better photo is need to to understand how to address your concerns. The DAO or depressor anguli oris is likely not at play. If injured, it would cause elevation of the corner's of the mouth and not depression. Once your are fully healed with full sensation, you would likely benefit from a comprehensive facelift.