[ProTaper镍钛旋转器械在弯曲根管治疗中的临床评价]
[Clinical evaluation of ProTaper NiTi rotary instruments in management of curved root canals].
作者信息
Xu Qiong, Fan Bing, Fan Ming-wen, Bian Zhuan
机构信息
Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China.
出版信息
Zhonghua Kou Qiang Yi Xue Za Zhi. 2004 Mar;39(2):136-8.
OBJECTIVE
To evaluate clinical effect of the new ProTaper Nickel-titanium rotary instruments in preparation of curved root canals.
METHODS
68 teeth with curved root canals were instrumented by ProTaper rotary instruments using crown-down technique, and by K files using step-back technique for control. All teeth were obturated with lateral condensation method. The efficiency of preparation and obturation was analyzed with radiographs before, during and after operation.
RESULTS
No transportation, apical blockage and ledge were found in test. The technique could keep the curvature and flow of curved canals. There were two ledge and more apical transportation (P < 0.01) in control than in test. The operative time was shorter and post treatment pain seldom occurred in ProTaper group.
CONCLUSION
The ProTaper NiTi rotary instruments can prepare curved root canals effectively and safely. It is an efficient instrumentation method for curved canals and can be used widely.
目的
评价新型ProTaper镍钛旋转器械预备弯曲根管的临床效果。
方法
采用冠向下技术，使用ProTaper旋转器械对68颗弯曲根管牙齿进行预备，对照组采用逐步后退技术，使用K锉进行预备。所有牙齿均采用侧方加压法进行充填。通过术前、术中及术后的X线片分析预备和充填的效率。
结果
试验组未发现根管偏移、根尖阻塞和台阶形成。该技术可保持弯曲根管的弯曲度和流畅性。对照组出现2处台阶，根尖偏移较试验组更多（P<0.01）。ProTaper组操作时间更短，术后疼痛少见。
结论
ProTaper镍钛旋转器械能有效、安全地预备弯曲根管。是一种高效的弯曲根管预备方法，可广泛应用。
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