Lower lip cannot cover lower teeth after jaw surgery 1.5 years ago. (photos)

After double jaw surgery, I have zero upper teeth show and all my lower teeth and even the gingiva are visible at rest now. Pre-surgery I had 2mm upper teeth show at rest and only a little lower tooth show when i smile. I read a post on a jaw surgery forum there is a guy had same problem as I have. He explained a little that this is caused by the surgeon did something wrong when attached the soft tissue back on to the jaw bone and it can be fixed. Please give me some professional advice.

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