摘要
目的通过不同方法对大鼠下颌骨去骨后的损伤程度及愈合情况观察,为牙槽外科选择一种安全的去骨方式。方法使用种植机在3000r/min无冷却、3000r/min有冷却、30000r/min有冷却、高速涡轮钻有冷却和咬骨钳对大鼠的下颌骨进行去骨,观察不同方法对骨组织造成的损伤程度及愈合情况。结果种植机在3000r/min有冷却下进行骨磨除对组织破坏最小。咬骨钳组与种植机在3000r/min无冷却组对组织破坏最严重。结论进行骨磨除时有冷却、低转速磨除可减少骨损伤。
Objective To observe the degree of injury and tissue repair after mandibles being removed in different ways in rats and find a safe way in bone removal for surgery of alveolar bone. Methods The mandibles of rats were respectively removed by surgical turbine without irrigation at a speed of 3 000 r/min, surgical turbine with irrigation at a speed of 3 000 r/min, surgical turbine with irrigation at a speed of 30 000 r/min, air turbine handpiece with irrigation or bone rongeur. To observed the degree of injury and tissue repair of mandibles in rats. Results The surgical turbine with irrigation at a speed of 3 000 r/min cause the least injury. The bone rongeur and surgical turbine without irrigation at a speed of 3 000 r/min cause the severe injury. Conclusion The irrigation is necessary during drilling, bone removal in lower speed can decrease the degree of injury.
出处
《河北医科大学学报》
CAS
2007年第4期263-265,共3页
Journal of Hebei Medical University
关键词
下颌骨
创伤和损伤
大鼠
mandible
wounds and injuries
rats
