My thinking was that I may have been moved into a ‘more’ class 2 position by the operation and that the upper-lower lip A-P relationship differential pre and post op is a reflection of that.
I’m not claiming you ever said the A-P relationship in isolation is a “key indicator” of class 2. Only that there may in fact be some correlation. I’m not trying to draw any hard conclusions about the significance of lip orientation. Just trying to learn more and think about it.
It isn't a reflection of that because lip posture ALONE isn't the key identifier of class 2. It's just something seen along WITH the jaw recession someone with class 2 skeletal pattern already has. Convexity of the LABIAL LEDGE of the upper lip post significant maxillary advancement isn't a reflection of 'being put in a class 2 relationship' either.
