During Sliding Genioplasty, Can a Wedge Shape Section Be Cut Out? (photo)

Hi I'm about to have a number of procedures done on my face. One is a sliding genioplasty. Being a former graphic designer i decided to try predicting what my face will look like after surgery. (see images) Can a wedge shape be cut out instead of a parallel piece to minimise the huge step that will be caused by the sliding after parallel section removal? Also leaving more bone in front Another question is, if the cut angle is increased, wouldn't that also reduce the verticle height of the chin?

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