You guys are indeed correct. I called today and it is an implant. Not a medpor one, but like a Gortex or something similarly named. Why is there not a single doctor on the entire North American continent offering chin wing?
Well it's a relatively new procedure which was only 'discovered' (is that the right word?) in 2009. So while within Europe there are new a few offering it, I imagine it'll take quite some time before it becomes more common in other parts of the globe. Another possible limitation might be that many view Maxfac as a purely functional form of surgery, whereas Chin Wing Osteotomie deals solely with aesthetics.
I hope it does catch on more though just because it's such a powerful procedure. The ability to fix asymmetries of the lower-third, improve gonial angles, give the appearance of lengthened gonial angles, widen the mandible angles and more. Basically it can address every aesthetic concern one would ever have regarding the mandible.
In terms of other forms of Ramal augmentation there is the SSRO (done with distraction and a traditional osteotomy), as well as an IVRO and BSSO w/ CCW to a lesser extent. The problem is that both of these methods impact the occlusal plane, and thus that becomes the limiting factor when talking about what can be achieved aesthetically.