A sliding genioplasty revision is no more risky than the original surgery and is the only way you are going to get a vertically shorter chin. Technically it has less risk than the original surgery since the bone cut line has already been established.
You have horizontal bony chin excess which becomes magnified when smiling as the chin tissues are pulled back against the prominent bone. Improvement can only come from managing both the bone and soft tissue chin pad excesses. This can only be effectively done through a submental approach and...
Fixing both your teeth and chin would require braces and a lower jaw surgery with a possible sliding genioplasty to move the chin slightly forward. I will detail the the genioplasty (chin) procedure below.A genioplasty will provide you a natural result because I use your own tissue (bone) to ...