This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Fracture mandible with edentulous jaw is best treated with - \nSelect and explain. \nA. External fixator, B. Minerva-plaster, C. Interdental wiring, D. Intermaxillary elastic traction', 'role': 'user'}, {'content': 'Answer: A \nExplanation: • Condylar neck\xa0is the weakest part of the mandible and MC site of fracture\n• Mandible may fracture directly at the point of the blow\n• Indirectly where the force from the blow is transmitted and the mandible fractures at a point of weakness distant from the original blow, known as ‘guardsman’ fracture.\n• ‘Butterfly’ fracture of the mandible: A segment of mandible is detached from the rest of the mandible in the canine regions.\nDiagnosis\n• Recommended radiographic evaluation of a mandible fracture: Panoramic radiograph (Panorex) and Towne’s view x-ray.\nTreatment\n• As in midface fractures, restoration of dental occlusion forms the foundation for fracture management.\n• Intermaxillary fixation before fracture exposure and plating is necessary.\n• Condylar and subcondylar mandible fractures are most often treated by IMF alone.\n• Medical management of mandibular fractures involves a purée-type diet, interdental fixation for several weeks, 1% chlorhexidine mouth rinses, and antibiotics.', 'role': 'assistant'}]