Abstract

Maxillary alterations identified after surgical treatment of mandibular prognathism with Bilateral Sagittal Split Osteotomy (BSSO). At 4 weeks, 2 years, and long-term follow-up, 40 patients underwent mandibular retraction BSSO, and pre-and post-operative cephalometric radiographs were collected (meaning 24 months). To determine intraoperative and postoperative alterations, cephalograms were tracked and measured. Correlation analyses were carried out to investigate the association between the failure rate and the rate of long-term alterations following surgery in point B and pogonion. The size of regression and the rate of recurrence at point B and pogonion had no association. There was a substantial relationship, however, between the extent of vertical, downward surgical displacement and the rate of vertical recurrence at point B and pogonion. The majority of the jaw and facial changes occurred within a year following the surgery [1].

Keywords:Surgery; Bilateral mandibular; Dentistry; Prognathism; Oral and maxillofacial surgery

Abbreviations: BSSRO: Bilateral Sagittal Split Ramus Osteotomy; MMO: Maximum Mouth Opening; IMF: Inter Maxillary Fixation