显微超声技术用于塑化根管再治疗的临床观察  

Clinical observation of the retretment of resinified root canal with ultrasonic technique under dental microscope

作　　者：郑蓉[1] 张金鸽[1] 潘玉霞[1] 李家琪[1] 刘学[1] 

机构地区：[1]广东医学院附属南山人民医院.深圳市第六人民医院口腔科,广东深圳518052

出　　处：《临床口腔医学杂志》2012年第2期104-105,共2页Journal of Clinical Stomatology

摘　　要：目的:评价根管显微镜联合超声技术在塑化根管再治疗中的应用效果。方法:选取曾进行过塑化根管治疗需再治疗的患牙(后牙)71颗,220个根管。在根管显微镜下,采用超声根管锉去除根管内塑化物,疏通塑化根管的上段,小号手用C型锉配合酚克除溶液逐步疏通根管下段。通过X线片、根尖定位仪等对治疗效果进行评价。结果:220个塑化根管经显微超声技术再治疗后根管完全再通149个(成功率67.73%)。不同牙位组间的根管再通率无显著性差异。结论:显微超声技术去除根管内塑化物有较好的疗效,由于各种原因,塑化根管完全再通畅率较低。后牙塑化根管再通的概率与其牙位无关。Objective:To evaluate the effec t of using ultrasonic technique under the dental microscope to remove the resinfying materials in root canals.Method :220 root canals of 71 premolars and molars that had been treated with resinifying therapy before were selected for root canal therapy.The coronal portion of resinified root canals were negotiated with ultrasonic K-files under the dental microscope,and the apical portion was managed with small size handful C-file and Resosolve,and the effect evaluated by X-ray and electronic root apex locator.Result:149 canals of 220 resinfied canals were successfully retreated,and the success rate was 67.73 %.There are no significant differences among different located teeth.Conclusion:The use of dental microscope combined with ultrasonic technique is useful in treating the resinfied teeth.But the success rate was not high enough because of several factors.There are no success rate differences in posterior teeth of different locations.

关 键 词：牙科显微镜 超声技术 根管再治疗 塑化治疗 

分 类 号：R781.05[医药卫生—口腔医学]