5 days post sliding genioplasty my chin is overprojected. Is a partial revision required, and how soon should I get it?

5 days out you should be concerned if your chin does not look over-projected.  This is going to take time.  At three weeks, you will have a good sense of the appearance but it won't be until 6 months before you get  your final result.  Some times the hardest part of the surgery is the patience after the procedure.

5 days is too early to judge your results after genioplasty. Right now you are going to have a tremendous amount of swelling. You have to wait at least a week and up to a month for it to really look good. Generally, I tell people that you will have 60% of your healing at 6 weeks, 80% at 6 months and the rest occurs up to 2 years later. So be patient. It will get better and most of the time things can be changed back to the way they were or altered a bit. I personally prefer chin augmentation to genioplasty. Chin augmentation is generally, through many studies, associated with less complications than genioplasty. These complications can include, nerve damage, a step off deformity, bone loss, problems with the implants or titanium plates and screws used for the fixation of the chin implant or the genioplasty segment that is advanced.