Intruding the posterior teeth and getting couterclockwise autorotation of the manidble will, indeed, widen your face. This is because the two rear bottom points of your lower jaw, called, I think they're called gonions or pogonions, would move downward, making the lower part of your face wider.believer1964 wrote:fosterp wrote:The easiest way is to just imagine your back teeth determine how far your bite will close. Close your mouth as best as it fits. Now slightly open your bite a few millimeters. This is what will happen if your back teeth are extruded. If you look from the side, your mandible will rotate in a clockwise rotation, down and back, like the hands on a clock as time passes.
Simulating the opposite isn't really possible since you can't close your mouth further than it already is, but going from a slightly open position and then closing your mouth - opposite of above - is the movement that is experienced when your back teeth are intruded.
Intruding your incisors won't do much in terms of face changes because your front teeth aren't really determining how your bite works, since the incisors don't oppose each other and don't determine where your bite is. HOWEVER, I would suppose if your bite is at a point that only your front teeth are the ones occluding because of some malocclusion, and your back teeth don't touch, then fixing the overbite and allowing the back teeth to touch would in turn reduce facial height.
I am not a doctor or ortho so don't take my word as professional knowledge, I have just done a lot of reading and thats my guess.
Does this mean my face would widen?
Furthermore, just the decrease in length would make your face look wider, because it's relative.