I've wondered the same thing, I don't know. Christy Turner did some studies on teeth but I don't think he covered that area. Try a search on Christy Turner + teeth, that may get you an answer.
"European Upper Paleolithic peoples do not display sinodonty. It is Turner's belief that the Sinodont northern Chinese may have evolved from a primeval Southeast Asian Homo sapiens population."
BTW, The oldest (undisputed) Mongoloid skeleton ever found is only 10,000 years old, Oppenheimer.