I have a cleft chin. One side is larger than the other. There's more fat or some other type of soft tissue on one side compared to the other, It's been like this my entire life even throughout weight fluctuation. The asymmetry is not in the jaw bone itself, the bone is equal on both sides. I'm not interested in temporary solutions, I would not consider hyaluronic acid fillers. I'd like to know which permanent solutions can solve this problem. Thank you!