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The second period-treatment for mandible multiple outmoded fracture after operation failure

LIU Yi,BI Wei-wei,GUI Bin.School of Stomatology,China Medical University,Shenyang 110002,China.  
Objective:To investigate the way of the second period-treatment for mandible outmoded fracture on the ba-sis of model surgery.Method:Before the surgery,we carried out model surgery,made occlusion guide plate,and routinely placed dental arch splints.The surgery chose internal incision.In surgery,at first,we revealed the outmoded fracture line.Secondly,cleared bony callus and removed soft tissue around the outmoded fracture line.Thirdly,got rid of the old pates,placed the occlusion guide plate made before the surgery to recover bite relation of pre-injure.Eventually all patients were taken rigid internal fixation with new plate.After the operation the intermaxillary elastics were maintained for 2 weeks,and patients were told to make training in opening and closing mouth regularly.Result:All patients'bite relations absolutely re-cover.Conclusion:On the conduction of model surgery and the occlusion guide plate,the rigid internal fixation with inter-maxillary elastics to treat mandible outmoded fracture is good for union of fracture and recovery of the bite relation.The ef-fects of clinical application are satisfactory.
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