Say I did decide I wanted another few mm at a later date, does anyone know if it's possible to do a second genio once the bone has fully healed. Remove the previous screws and slide forward another 3 or 4 mm? I'm just wondering, if the bone fills in the gap, then once you're healed it's like you were born with a larger chin, and then there's nothing to stop you doing it again, and again, and again... in theory. So, theoretically, there's no limit to the advancement that can be achieved with genioplasty, if done in stages? Not that I want several, maybe just a few more mm, but I'm interested if this logic is correct.