. I have seen some illustrations, andit seems like one are left with some edges in the bone structure I wonder: Is it customary or possible to smoothen the bone structure? If not, will you feel the edges when you touch it? Will they show as your skin gets thinner? additional details: I am 38 years old. I plan to correct an assymetri and underevelopment due to child reumatoid artritis by moving my chin forward and to the side. My artritis is in remission since 2000.