Hyperdynamic chin ptosis. Not sure if at rest chin is too recessed and/or too long? What would be best to improve face? (Photo)

Based on the photos, your chin is slightly recessed and your facial balance would be improved with a chin implant of sliding genioplasty. In most cases, this reduces the dynamic action of the mentalis muscle. In addition, I would recommend submental and jawline liposuction to improve the definition and contour of the neck and jawline. These can all be done simultaneously

I don’t think your dynamic chin appearance is very different than typical.
I don’t think it’s enough to warrant surgical intervention.
And static pictures your chin is not well projected either vertically or horizontally.
It does extend one smiling, but this is true for all people.
When smiling on a frontal view, it shows slight narrowing on the lateral aspect of the chin acid projects.
I usually don’t do assessments or treatments based on dynamic expression, and usually only assess based on static expressionless faces.
Attempting to treat with someone looks like with contraction of muscles of facial Expressions is typically difficult.
There’s something to be said about not having intervention unless there’s a clear indication for it.
Best,
Mats Hagstrom MD