There are oral surgery some residencies that being about an MD/DDS in OMF surgery.
But I am not aware of any combined MD/DDS (or equivilent) programs that equip for primary care for both. However, I am aware of some of these programs that existed in the 1960s--even in Canada.
If there are any who know of these programs, in any nation and in any language, I will be very interested to know of them as well.
I can pretty safely say that these programs will never be in the US.
But I have been amazed, really amazed that these programs, modeled after the ones in 60s that equipped for primary care for both, have not proliferated in the third world, and in other areas where there rural enivironments coupled with high medical and dental need.
However, that being said, some third world residencies in W and S Africa that I am aware of do train their primary care and general surgery residents some oral surgery. And docs in such setting will find frequently themselves doing some dentistry anyway--training or not!