Chipmunk cheeks due to bad occlusion/overbite/overjet?

[Overbiter]

Is there an effect on the buccinators when you have bad occlusion and an overbite/overjet? Can BSSO and mandibular advancement improve the cheeks? Kind Regards.

 

[Deleted member 15405]

due to mandibular third dimensional hypoplasia causing the soft tissue to overlap around the jaw because lack of support

or just fat