i believe the "teddy bear" face has something to do with the yorkies who have a shorter snout (more of a flatter face) ... i think it also has to do with the shape of the eyes...i believe the teddy bear face has a more round shape eye as opposed to the almond shape that i believe is the "correct" shape according to the AKC and YTCA ...
any yorkie experts - if i have this wrong, please correct me