摘要
目的观察C型先锋锉用于塑化根管再治疗的临床效果。方法选取塑化根管再治疗患者41例,患牙50颗,126个根管,以患者门诊号随机分为2组。单号为试验组,患者24例、患牙26颗、65个根管,采用C型先锋锉配合乙二胺四乙酸(ethylene diamine tetraacetic acid,EDTA)凝胶疏通根管;双号为对照组,患者15例、患牙24颗、61个根管,采用不锈钢K锉配合EDTA凝胶疏通根管;随后均以机动镍钛根管器械扩大并用冷牙胶侧压充填根管,术后拍摄X线片。记录两组再疏通成功的根管数、操作时间、根管偏移或侧穿、器械折断等情况。结果试验组65个根管中有60个根管再疏通成功并完成根管治疗,再疏通成功率为92.31%,平均疏通时间(11.57±3.57)min,无根管偏移、台阶形成、根管壁侧穿及器械折断发生。对照组61个根管中有48个根管疏通成功并完成根管治疗,再疏通成功率为78.69%,平均疏通时间(21.21±3.18)min,有2例器械分离,1例根管侧穿。2组再疏通成功率的差异具有统计学意义(χ2=4.77,P<0.05),疏通时间的差异具有统计学意义(t=14.62,P<0.01)。结论 C型先锋锉配合EDTA凝胶应用于塑化根管再治疗中,能提高再疏通的成功率和效率。
Objective To evaluate the clinical effect of C-Pilot files in the retreatment of resinified canals compared with stainless steel hand files. Methods A total of 126 resinified canals in 50 teeth were collected and randomly divided into experimental group and control group. Experimental group was treated with C-Pilot files and EDTA, while Control group was treated by stainless steel hand files and EDTA. The percentage for removal of resinifying agent and time re- quired for removal were calculated. The root canals were all filled with lateral condensation technique. Results The ef- fectiveness of C-Pilot files for removing resin agent was better than stainless steel hand files. 92.31% of canals could be negotiated by C-Pilot files ; 78. 69% of canals be negotiated by stainless steel hand files. There was a significant differ- ence between the two groups concerning the rate of achieving the working length ( P 〈 0.05 ), The experiment group was significantly faster than the control group (P 〈 O. O1 ), Conclusion The use of C-Pilot files is proved to be effective in negotiation of the resinified root canals.
出处
《广东牙病防治》
2013年第10期526-528,共3页
Journal of Dental Prevention and Treatment
关键词
塑化根管
C型先锋锉
根管再疏通
Resinified canals
C-Pilot files
Endodontic retreatmen