My chin looks too big post sliding genioplasty, is a reverse sliding genioplasty or burring the chin bone the best solution?

I had mandibular advancement for an overbite 17 months ago. My surgeon has retired. My lower jaw was moved forward 5mm and then my chin was moved forward another 5 mm with a sliding genioplasty. The genioplasty was also jumping meaning my chin was slid on a slight upward incline. However, my chin now looks too large. It is extending horizontally past my lower lip and the chin bone also appears too wide.Also, my lips have thinned a bit. Is a reverse sliding genioplasty the solution?