Surgically removing chin fillers? (photo)

1 mm is pretty irrelevant when it comes to the sliding genioplasty procedure. The bone and soft tissue response is not 1 : 1. For example, and advancement of 5 mm may only advance the soft tissue 3-4 mm. Based on the one profile photo that you submitted, I would recommend a 6-7 mm advancement.

Unfortunately, between all these photos there is only one which gives us information about how do you look now. It appears that adjustment of the neck and chin is needed to create more balanced profile. Only on the basis of in person evaluation an experienced board certified plastic surgeon...

In the profile photo your chin is prominent with a deep mentolabial fold. It is probably a bit short in the vertical dimension. A reduction genioplasty would diminish the amount of projection and slightly lengthen the chin to reduce the depth of the mentolabial fold.