不同输出功率的高频电流对实验动物牙髓失活的研究  

Effects of different output power high frequency currents on experimental animals' pulp devitalization

作　　者：陶淑华[1] 王秀丽[1] 李晓蕾[1] 甘庆贤[1] 李涛[1] 

机构地区：[1]哈尔滨医科大学大庆校区,163319

出　　处：《实用口腔医学杂志》2009年第3期352-355,共4页Journal of Practical Stomatology

摘　　要：目的:观察不同高频电流对家兔牙髓失活的影响,为临床应用性研究和新技术、新方法的推广提供依据。方法:选取约3个月龄健康家兔60只,分成4个高频组和2个对照组,分别接受5、10、15、20W功率的高频电流失活门齿牙髓实验,并将结果与传统牙髓失活药物复方蟾蜍合剂进行失活效果及对牙周组织损伤程度比较。结果:15W输出功率的高频电流引起牙髓失活的效果与药物引起的失活效果相似,且未发现根管壁和根尖周的损伤,失活的牙髓易于拔除,出血少。结论:15W高频输出电流的可靠性、安全性可以做为进一步临床应用性研究的重要参数。Objective： To observe the effects of high-frequency current on rabbits dental pulp and to provide experimental evidences for clinic research. Methods： 60 healthy 3 months old rabbits were divided into 4 experimental groups and 2 control groups. Dental pulps of experimental groups were treated with high-frequency currents with output power of 5 W, 10 W, 15 W and 20 W respectively. Then the devitalization degree of injury of dental capsule of experimental groups were compared with treated by complex toad composition, a type of traditional pulp devitalized medicine. Results： The effects between the devitalized effect of high-frequency current under 15 W and that of the traditional medicine were similarly. The concomitant injury of root canal tubal wall and periapical were not detected. Dental pulp of deactivation was easy to be extirpated and bled little while being extirpated. Conclusion： The reliability and safety of 15 W high-frequency output current could be the important parameter for clinic application research.

关 键 词：高频电流 功率 牙髓失活 

分 类 号：R781.05[医药卫生—口腔医学]