lykos

You can slide the chin to any direction with genioplasty, so making it vertically and horizontally longer both works, too.

 

Ah yes, that's horrible. I'm sure that is an exception, but I understand that it is scary. However, there is a chance that removing the screws is at least difficult, if bone grew over them. If it makes you feel that much safer, removing them first is an option I guess, but comes with a lot of extra cost and downtime unfortunately. I think the screws are quite standardised worldwide. Doesn't the surgeon who did your double jaw do v-line as well or do you not want to have it done by the same one?

 

I doubt the screws would be a problem. Did you have genioplasty with your double jaw surgery? I guess the v-line surgeon would reduce your jaw below the screws. I don't think it would be a problem to remove them either, if he actually has to work in that area. If your double jaw surgery had a genioplasty included already, it should also be possible to remove the old screws and place new ones when redoing the chin.

Your double jaw surgery just has to have healed long enough and I believe they will tell you that is after 6 months.

 

If double jaw surgery can shorten your face, really depends on the position of your upper jaw. I don't know what your face looks like so I will just throw some guesses. If your jaw is making your face look wide, then v-line can help with that. If your face is wide around the eyes and it is not the cheekbones, it would mean your eyes are far apart I guess. It is said ideally the distance between the eyes is the width of one eye. I think a bit more than that works too, especially in females. Still, there is no fix, if they are really far apart. Since you didn't mention it, I assume the vertical length of your nose is not an issue. That would also not be fixable.

Back to double jaw: long face and flat cheeks sounds like there might be an orthodontic issue too, so double jaw could benefit you, but that's a blind guess. I think they will only do double jaw, if your bite is good or near the end of the orthodontic treatment to make it so.

 

v-line surgery reduces the jaw bone so you can probably guess why it looks smaller. Double jaw surgery can make the face smaller, if the midface is shortened. Pieces of bone are taken out above the teeth of the upper jaw and the jaw is fixated in a higher position. There does not have to be vertical movement with double jaw surgery though. It is done for gummy smiles when a lot of your upper teeth show when your mouth is open with the upper lip relaxed. Also, the genioplasty that most of the time comes along with these surgeries can be reductive.

 

The picture resolution is not the greatest, but from what I think I can see, there is no single feature in your face that stands out as UGLY. I can't tell, if in person your teeth/jaw could be misaligned. To me, the thing standing out most is that you have a round face. To some degree losing weight would probably help that, surgeries can't really. Round faces are not uncommon though.
One easy fix: either full beard or no beard, never moustache, especially not a thin one.