A chin implant with a suboptimal outcome can be treated in one of two ways. It can either be replaced with a properly shaped implant immediately after its removal or the implant is removed all together and the chin flaw is corrected with a sliding osteotomy, meaning by moving the chin bone forward, backward or sideway, whatever is going to provide a pleasing outcome, again, immediately after removal of the implant. The only time that we remove the implant and wait for the healing to occur is in the presence of an infection. It seems to me that your implant is either large in every direction or implant is used while an osteotomy would have served you the best, since you may have had vertical excess and horizontal deficiency, based on the classification of the chin imperfections that I have described. You need to consult someone with sufficient experience in this topic since reversal of the implant or conversion to an osteotomy requires extra finesse to minimize the potential for dimpling and witches chin deformity.Good Luck