The correction of most cases of skeletal class II mandibular deficiency requires surgical advancement of the mandible for treatment of the malocclusion. Often genioplasty is included in the procedure to improve the soft tissue profile. Long-term skeletal stability is an important goal for the surgeon and orthodontist following bilateral sagittal split osteotomy (BSSO) and is influenced by the m...

Nowadays bilateral sagittal split osteotomy (BSSO) is the most common technique for treatment of mandibular skeletal deformities. One of the most sensitive stages in BSSO is recognition of inferior alveolar nerve entrance. This technical note presents a noble and safe approach for medial osteotomy in BSSO which is based on anatomy of mandible during the surgery. In this approach osteotomy initi...

T emporomandibular joint and masticatory muscle dysfunction prior to and following bilateral sagittal split osteotomy (BSSO) of the mandible is not well documented. The effect, if any, that the type of internal fixation used has on dysfunctional symptoms is unclear. Several authors have concluded that the TMJ does not appear to be affected following a BSSO with wire osteosynthesis. 1-S However,...

OBJECTIVE To introduce new 3-D imaging techniques to characterize shape and volume changes of the oropharyngeal space after bilateral sagittal split osteotomy (BSSO) advancement. MATERIALS AND METHODS Longitudinal cone-beam computed tomography (CBCT) scans were obtained for 20 patients undergoing BSSO advancement at three time points (T1 = presurgery, T2 = splint removal, and T3 = 1 year afte...

Bilateral Sagital Split Osteotomy (BSSO) is one of the most common surgeries for the management of mandibular retrognathism. However, nerve damage and lip paresthesia is possible after the surgery. The aim of the present study was to evaluate the incidence of neurosensory disturbance after BSSO surgery. 42 patients in need of mandibular advancement participated in this study. The sensory status...

Bilateral sagittal split osteotomy (BSSO) in order or advance mandible is a common surgery for patients with mandibular retrognathism. While various complications could result after this surgery, the aim of the present study was to evaluate the effect of BSSO surgery on electric activity and function of masseter muscle. 36 patients in need of mandibular advancement with BSSO technique participa...

AIM The gonial angle plays an important role in ensuring a harmonious facial profile. Changes in this angle after surgery may be an esthetic concern for both the patient and the surgeon. The aim of the present study was to evaluate gonial angle changes after mandibular setback by the bilateral sagittal split osteotomy (BSSO) and vertical ramus osteotomy (VRO) techniques. METHODS Fifty-eight m...

Changes in cross-sectional area (CSA), volume (indicating muscle strength), and direction of the masseter and medial pterygoid muscles after surgical mandibular advancement were measured, along with the rotation of the condyles after bilateral sagittal split osteotomies (BSSOs) to advance the mandible. Measurements were done on magnetic resonance images obtained before and 2 years after surgery...

Neurosensory disturbance is a common complication of bilateral sagittal split osteotomy (BSSO). This study focuses on the evaluation of factors affecting neurosensory disturbance after BSSO. Furthermore, the study focuses on the measurement of neurosensory disturbance with easily available bedside tests, not only on evaluating the state of sensory disturbance at each follow-up, but also on pred...

The aim of this prospective observational study was to investigate the parameter ‘hidden blood loss’ (HBL) in context orthognathic surgery, incorporating undetected bleeding volumes occurring intra- and postoperatively. Orthognathic were recorded at three different time points. At end operation visible intraoperative loss (VBL) measured. Additionally, perioperative calculated 24 h 48 postoperat...