Chin implant removal - what are the complications that could arise after removal? (photos)

I had a chin implant placed intraorally almost a year ago. I ended up looking like I was 10 years older bc of some scar tissue. The oral surgeon that placed my implant placed filler in that scar tissue which helped but it still looks odd and I have an indentation above that area. I feel like it's too large and like my lower lip is being pushed inward aging me more. I am interested in removing my implant but am hesitant to have him do it. I'm afraid of complications that could arise after removal