We don't usually think of the shrinking of the bones or manage this in terms of ageing. I think we need to look at a way to combine a traditional face-lift with something that adds volume, like with fat injections.
What I think happens is that the bones in the face lose volume and recede a little bit as we age.
As we age, not only do we lose fat in our faces but our bones actually change in contour, often making us look older than we feel.