Sliding genioplasty step off?

Question

I am considering a sliding genioplasty over a chin implant because I am afraid of the implant shifting later in life. However, I have read that a consequence to SG is a step off in the jawline. I am a petite girl and have a skinny face/well defined jaw line so I am afraid of a step off being extremely apparent. How likely is it for this step off to be apparent with a 4mm advancement forward and a very small vertical advancement? Is there any way to prevent or treat a step off? Thanks

Barry L. Eppley, MD, DMD · Answer

Small horizontal advancements with a minimally angulated bone cut have a low risk of any significant step-off deformity.

Gerald Wittenberg, MSc, DMD (retired) · Answer

The sliding genioplasty can be designed in a few ways; but the 'cut' in the bone will create a change in the contour 'until' the bone heals and 'remodels'. Typically, it will remodel smooth and without 'notching'. However, that also depends upon the 3D movements of the chin. Most importantly, some of us use thin strips of gortex or other methods to ensure a smooth contour on the sides and in the 'front' /ledge' area. Talk to the surgeon about it.

Sliding genioplasty step off?

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