Can I Have my Chin Implant Adjusted with a Screw Put In?

had the implant 16 years ago. its silicone. I am wanting to take up karate and worried it might shift if it gets a knock (even though i would wear a face guard) do you think this is a potential problem? If so, would it just be a case of opening it up and sticking in a screw? Any idea of the cost involved in this adjustment and if the 16 years of bedding/healing I have gained would be negated? many thanks Chris

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