Three- dimensional analysis of transverse width of hard tissue and soft tissue after mandibular setback surgery using intraoral vertical ramus osteotomy : a retrospective study

Some clinicians are concerned that if an intraoral vertical ramus osteotomy (IVRO) is used to position the mandible posteriorly, the proximal segments should be positioned laterally to the distal segment, which could increase the transverse mandibular width (TMW), leading to esthetically-unfavorable results. This study investigated short- and long-term postoperative TMW changes in soft and hard tissue following IVRO for mandibular prognathism .

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