手用ProTaper镍钛器械在老年人根管治疗中的临床应用

The evalration of Hand ProTaper NiTi instruments in root canal therapy for elder patients

目的:比较手用ProTaper镍钛器械与手用K锉在老年人根管治疗中的临床应用研究。方法:老年患者127例,138颗患牙。其中手用ProTaper组65例,72颗患牙为实验组;手用K锉组62例,66颗患牙为对照组。结果:实验组无根管偏移、根尖阻塞、台阶形成及根尖孔敞开等根管内并发症的发生,根管的锥度及流畅度极佳。对照组有5个根管发生根尖阻塞,3个根管在根尖1/3处有台阶形成;有5个中度弯曲的根管和4个重度弯曲的根管有轻度至中度的根尖孔偏移。结论:2种器械根管预备有显著差异,ProTaper镍钛器械根管预备后维持厚根管形态和高充填质量。

Objective： To compare the effect of Hand ProTaper NiTi instruments and hand K rasp tile in root canal therapy. Methods： There were 127 elder patients with 138 offending teeth. 65 men in hand ProTaper team with 72 offending teeth were treated as the experimental group;62 men in hand K rasp group with 66 offending teeth were treated as the control group. Results： No syndrome occurs in the root canal of the experimental group, such as root canal transportation,root apiex blocked,sidestep forming, nor apical foramen zipping.In addition,either taper or fluency of the root canal in the experimental group was super fine. Whereas in control group, 5 root apieces were blocked,3 root canals formed the sidestep at the 1/3 of the root apiex,apical foramen transportation of mild or moderate occurred in 5 medium and 4 severe crooked root canal. Conclusion： The two types of instruments prepared in root canal therapy are significant different. The tooth cleaning effect of ProTaper NiTi instruments is superior in terms of maintaining the shape and filling quality of the original root canal.