Is a Chin Wing Reversal Possible? Will this lead to neck and chin sagging?

Well, there are no photographs attached so it's hard to know what the deformity is. However, we can typically address things like this. We'd want to see where you have an excess or lack of tissue and determine a good course of action.

Hello. The fact that your mid-face is very flat and inward makes your lower face look more prominent and protruding. We can only achieve the proportion between the lower and middle face by placing a cheek implant. However, we can revise the chin implant you had years ago and place a chin implant...

In most cases the mentalis muscle reinserts into the bone and function is normal. The risks of problems is diminished when the the bone reduction/ burring is done from a submental incision. Ptosis of the chin is a potential complication and this may require chin resuspension. It is not common...