Dimples are difficult if not impossible to eradicate and I would think that buccal fat removal will not affect them either way. Buccal fat removal can correct a rounded cherubic face and often jowls and fullness around the angles of the mouth and is generally a very successful maneuver. Bes sure to consult with a surgeon certified by the American Board of Plastic Surgery. You can see examples of this on my web site.
There should be no loss of dimples with a buccal fat excision. A buccal fat excision is done from within the mouth and does not interfere with how the dimples are formed on the under-surface of the skin.