Wait a second. I thought that bringing teeth "backward" to solve an overbite was the worst thing that can be done? This is what I had as a kid and now because my genius orthodontist moved my teeth so far back I have a recessed lower jaw, narrow arches, and worst of all sleep apnea. If you move the teeth backwards you make your airway narrow. Is what I'm saying true???
It depends on the starting point. If teeth sitting correctly within the arches and then being excessively retroclined to compensate for jaw discrepancy, you are correct. But in thinkingme's case of overly-proclined teeth due to tongue thrust, they need to come back a bit.
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thinkingme - you're likely going to have to get the extractions as part of a surgical plan. It's not the end of the world. Your arches aren't large enough to hold your teeth and, as has been covered within this thread, expansion options aren't really options at all at this point. When John Mew pointed out that it may make the face look longer, I believe he means when not coupled with surgery, because with surgery, this shouldn't be the case.
To summarize: Incisors are overly proclined to fit because arches are under-projected. Premolar extractions are needed so the teeth will then fit within the arches properly. After that point, bimaxillary advancement to bring both the mandible and maxilla forward horizontally. The anterior-posterior is the simple part.
The more difficult part is addressing your jaws vertically. Your curve of spee looks exaggerated but may be fine once the teeth are positioned correctly, i.e. it's possibly just a dental issue. To be honest I'm not sure. The issue I see with which I'm unfamiliar is it appears your lower incisors' tips will sit higher than the rest of your lower teeth once properly uprighted.
Also, it appears you have a very flat occlusal plane when compared to Frankfurt plane but I think you head posture is bad in your ceph in that you're leaning back, because your Frankfurt plane is not horizontal, so I think it's fine. I don't have a protractor on hand to measure.