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 2009
Controlled Clinical TrialClinical evaluations of coronectomy (intentional partial odontectomy) for mandibular third molars using dental computed tomography: a case-control study.
Studies have suggested that coronectomy reduces the risk of inferior alveolar nerve injury (IANI) when a close relationship with the inferior alveolar canal is indicated on panoramic imaging. However, the relationship between the inferior alveolar canal and the root are unclear on panoramic imaging. Our aim was to compare coronectomy with traditional extraction for the treatment of mandibular third molars that had clear high IANI risks as evaluated by dental computed tomography. ⋯ Coronectomy might reduce the risk of nerve injury for patients at true high risk of IANI as evaluated by dental computed tomography. A long-term postoperative review is needed to assess the incidence of root migration and the root extraction and infection rates after coronectomy.
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J. Oral Maxillofac. Surg. · Sep 2009
Microsurgical repair of peripheral trigeminal nerve injuries from maxillofacial trauma.
Injuries to the peripheral branches of the trigeminal nerve from maxillofacial trauma can have distressing sensory or functional sequelae. The present study reports the results of trigeminal microneurosurgical repair in a series of patients with maxillofacial trauma. ⋯ Microsurgical repair of peripheral branches of the trigeminal nerve injured by maxillofacial trauma produced significant improvement or complete recovery in 36 (86%) of 42 patients. These results compare favorably with the microsurgical repair of peripheral trigeminal nerve injuries resulting from other causes.
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J. Oral Maxillofac. Surg. · Aug 2009
Comparative StudyDental injuries in association with facial fractures.
The aim of the study was to investigate the association between dental injuries and facial fractures. ⋯ Knowledge of the association of dental injuries and maxillofacial fractures is a basic tool for their prevention. Our study showed that in cases of trauma with mandibular fracture, the teeth in the upper jaw might be at higher risk than the teeth in the lower jaw. Further larger-scale studies on this topic could clarify this finding and may provide suggestions for the amelioration of safety devices (such as modified bicycle helmets).
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J. Oral Maxillofac. Surg. · Aug 2009
Comparative StudyUtility of the Portex introducer, ivory type, as a tube exchanger.
This study compared the Portex introducer, ivory type (PII) (Portex Tracheal Tube Introducer; SIMS Portex, Hythe, Kent, England), and Cook Airway Exchange Catheter (CAEC) (Cook, Letchworth, Hertfordshire, England) with regard to success rate of and time required for tracheal intubation by use of each device by oral and maxillofacial surgeons on a manikin. ⋯ Intubation is faster, more sure, and easier by use of the PII as a tube exchanger than with the CAEC. This may be particularly important for patients undergoing oral and maxillofacial surgery as a result of anatomic changes in the airway, because edema or hematoma in the upper airway often leads to failed intubation. We conclude that the PII is useful as a tube exchanger.
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J. Oral Maxillofac. Surg. · Aug 2009
Comparative StudyComparison of fixation stability of resorbable versus titanium plate and screws in mandibular angle fractures.
The aim of this study was to compare the fixation reliability and stability of titanium and resorbable plates and screws by simulating chewing forces. ⋯ The stability of mandibular angle fractures with titanium miniplates under simulated chewing forces was significantly higher than with the resorbable system. Metallic and resorbable fixation systems cannot be used interchangeably to treat mandibular angle fractures under similar loading conditions.