Asymmetrical pouting action after Mandibular Angle Reduction and Chin Surgery

I had zymomatic arch reduction, mandibular angle reduction and chin surgery done on 24rd March 2016, after surgery, I noted that my left lower lip cannot move properly and after 5 months, even though it had improved but it still showed asymmetry especially when I do the pouting action. My sensation is all normal. I can see there is only muscle problem. I want to get an opinion that if there is further room for improvement?

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