this makes sense, but it is irrelevant for people who have an overjet and a retruded mandible, right? most class III (underbite) patients have excess bone, but people with retruded mandibles and weak chins have less bone development in their jaws and thus need compensation. since my extractions, my jaw bones both upper and lower have slightly been absorbed at the extraction sites so that my jaws have gotten smaller, the opposite of what I want. by no means am i certain about this, just hypothesizing that for people with overjets this may be less relevant?