I dont think pockets shrink back to bone. I had a small 5mm silicone chin implant which stayed in only 2days! Removed due to not liking at all. Its been 10 weeks and my chin still huge and super wide like if the implant is still in. I had no time for any capsule formation. So why is it so wide and projected to forward? Which i hate. What is the reason? Is pocket fill with scar tissue? Is scar tissue become a soft tissue with time? So that area always be wider and bulky? What can i do to stop it?