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本文比较了在拔除牙的制备根管中充填糊剂的4种方法,对糊剂在侧压充填后根管中的部位和4种充填技术在糊剂充填根管上的差异。作者采用正常的人下颌切牙40个,随机分4组,经常规台阶法制备根管,根尖扩至35号大小后,分别采用4种方法充填根管糊剂,即根管锉、螺旋充填器、标准35号牙胶尖及20号超声锥形锉。全部牙齿均用AH26糊剂加牙胶尖侧压充填根管,必要时加副尖,临封洞口,经脱钙、脱水制成透明标本,用体视显微镜检查各牙两邻面糊剂充填的宽度,依下列标准评价根管的冠、中和
In this paper, four methods of filling the root canal with toothpaste were compared. The differences of the root canal filling position and the filling technique of the four kinds of paste in the paste root canal filling were compared. The authors used 40 normal mandibular incisors, were randomly divided into 4 groups, conventional root canal preparation step method, the root tip expanded to size 35, were used four methods filling root canal paste, root canal file, spiral Fill, standard No. 35 gutta-percha tip and No. 20 ultrasonic cone file. All teeth were treated with AH26 paste gutta-percha pressure filling the root canal, if necessary, plus apex, the closure of the hole, the decalcification, dehydration made of transparent specimens with a stereo microscope examination of each tooth two adjacent surface paste filling Width, according to the following criteria to evaluate the crown of the root canal, and