Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons
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J. Oral Maxillofac. Surg. · Sep 2012
Multicenter Study Comparative StudyDo patients treated with bimaxillary surgery have more stable condylar positions than those who have undergone single-jaw surgery?
Because condylar positioning after sagittal split ramus osteotomy of the mandible has been known to affect postoperative skeletal stability, accurate positional assessment of the temporomandibular joint after orthognathic surgery is vital to maximize stability of the surgery. The purpose of this study was to evaluate condylar changes after single-jaw and double-jaw surgeries in mandibular prognathism patients by comparing 3-dimensional angular and positional changes of the condylar heads in groups of patients receiving combined maxillary posterior impaction and mandibular setback and those undergoing only mandibular setback surgeries. ⋯ Condylar angulations are more stable after sagittal split ramus osteotomy of the mandible as an isolated procedure than in combination with the posterior maxillary impaction in treatment of skeletal Class III malocclusion patients. Condylar displacements in both the single-jaw and double-jaw groups are clinically insignificant.
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J. Oral Maxillofac. Surg. · Sep 2012
Comparative StudyConcomitant removal of mandibular third molars during sagittal split osteotomy minimizes neurosensory dysfunction.
Inferior alveolar nerve (IAN) injury is 1 of the most important postoperative complications after sagittal split osteotomy (SSO). The purpose of our study was to investigate the effects of the presence or absence of a mandibular third molar on the neurosensory recovery of the IAN after SSO. ⋯ The presence of third molars during SSO minimizes postoperative neurosensory disturbance of the IAN.
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J. Oral Maxillofac. Surg. · Sep 2012
Does traumatic brain injury result in accelerated mandibular fracture healing?
To investigate the occurrence of accelerated bone healing evidenced by early callus formation in patients with mandibular fractures and traumatic brain injury (TBI). ⋯ These findings suggest that patients with severe TBI and mandibular fractures exhibit increased fracture healing as evidenced by early callus formation. A more exhaustive study is required to advance the understanding of this phenomenon and provide additional clinical significance.
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J. Oral Maxillofac. Surg. · Aug 2012
Randomized Controlled Trial Comparative StudyMidazolam increases bite force during intravenous sedation.
Although there have been many reports on the effects of midazolam on vital function and the recovery profile, little is known about muscle power during sedation. The purpose of this study was to investigate the effects of midazolam on muscle power during moderate sedation. ⋯ Although the detailed mechanisms are unknown, bite force increases despite the muscle-relaxant action of midazolam during sedation and persists even with flumazenil reversal.