most of the prosths I see around here locally advertise as " family dentistry and prosthodontics." ... or some similar variation. Basically, it's difficult to run an all pros office because they specialize in many of the things that GPs like to keep for themselves. I suppose if you just love that stuff - you masochist - then a pros residency wouldn't be a bad way to spend two yrs. of your life. But I don't think it's a particularly marketable specialty.