Soft tissue changes with combined mandibular setback and advancement genioplasty.

This study was designed to examine changes in soft tissue in six patients treated by advancement genioplasty combined with mandibular setback. The genioplasty technique was modified to keep a maximum amount of soft tissue attached to the repositioned genial segment. The group of patients was characterized by mandibular prognathism, a flattened labiomental sulcus, a prominent lower lip, and an apparent lack of chin prominence. The genioplasty consistently produced a 1:1 ratio of soft tissue change to advancement of the chin.