I heard that you can't have a chin advancement and silicon implant at the same time because the silicon gets in and infects the exposed bone where it has been cut. is this true?
Is It Possible to Have a Chin Advancement and a Chin Implant Together?
Doctor Answers 1
Sliding genioplasty plus augmentation
If you are advancing the chin by a sliding genioplasty, you are trying to augment the profile without prosthetic materials. So it doesn't make sense to me to add a silicone chin implant. If you need to add more projection, what I have always seen done is a cranial bone graft added to the genioplasty. That way it is all your own tissue.