The material and design of root canal post has already been well investigated.
关于根管桩材料和设计的研究已日益成熟。
Obective To determine the clinical effects of preventing post treatment pain of root canal therapy(RCT) with Zhong Tong An(ZTA), a Chinese medicine.
目的对中成药肿痛安定风止痛胶囊（ZTA）用于预防根管治疗术后疼痛的临床疗效作出评价。
After perfect root canal therapy to the residual root and crown of the front tooth, it is the main repair method to utilize a post and core crown at present.
前牙残根残冠经过完善的根管治疗后，利用桩核冠修复在目前是主要的修复方法。
Method: The separate application of clamp, root elevator or drilling root canal according to different type of post pin and place of root surface.
方法：根据不同类型桩钉及根面所处位置，分别采用钳取、根尖挺挺出及钻磨取钉等方法。
FIBER post: Prepare the root canal with the Pre-Shaping and Finishing drills, according to manufacturer's instructions. METAL post: Sandblast the surface of the post.
纤维桩：依照厂商说明使用预成钻和完成钻进行根管预备。金属桩：对桩的表面喷砂。
Objective To study the effect of the various methods of root canal impression on the fixing power of post crown.
目的研究根管印模的不同方法对桩冠固位力的影响。
Conclusion: Amalgam post and core technique is conservative in restoring molars for its curved root canal, big root furcation, C-shaped root canal and large pulp chamfer.
结论：对于根管弯曲、分叉大、髓室大、C型根管的磨牙，银汞桩核技术有着明显的优势。
Objective:To introduce a new prefabricated post-and -core system, a helical drilling bit and a prefabricated post-and -core consisting of a root canal orifice bur which was designed by the author.
目的：介绍一种由螺旋型根管钻、自行设计的根管口台阶状车针、预成桩核组成的预成桩核系统。
Methods87 cases were treated with routine post-and-core PFM crowns after root canal therapy respectively.
方法87例残根残冠经过完善的根管治疗后，用螺纹根管钉、光固化树脂核、金属烤瓷全冠进行修复。
Conclusion: The defect treatmen of glass fiber post in a single premolar tooth root canal can achieve satisfactory results.
近年来，作者采用玻璃纤维桩进行前磨牙牙体缺损的修复，取得了良好的临床效果。
Conclusion: The defect treatmen of glass fiber post in a single premolar tooth root canal can achieve satisfactory results.
近年来，作者采用玻璃纤维桩进行前磨牙牙体缺损的修复，取得了良好的临床效果。
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