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首页> 外文期刊>International endodontic journal >Analysis of the gutta-percha filled area in C-shaped mandibular molars obturated with a modified MicroSeal technique.
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Analysis of the gutta-percha filled area in C-shaped mandibular molars obturated with a modified MicroSeal technique.

机译：用改良的MicroSeal技术分析C型下颌磨牙充填的牙龈胶填充区域。

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AIM: To analyse the gutta-percha filled area of C-shaped molar teeth root filled with the modified MicroSeal technique with reference to the radiographic features and the C-shaped canal configuration. METHODOLOGY: Twenty-three mandibular second molar teeth with C-shaped roots were classified according to their radiographic features as: type I--merging, type II--symmetrical and type III--asymmetrical. The canals were root filled using a modified technique of the MicroSeal system. Horizontal sections at intervals of 600 mum were made 1 mm from the apex to the subpulpal floor level. The percentage of gutta-percha area from the apical, middle and coronal levels of the radiographic types was analysed using the Kruskal-Wallis test. Complementary analysis of the C-shaped canal configurations (C1, C2 and C3) determined from cross-sections from the apical third was performed in a similar way. RESULTS: No significant differences were found between the radiographic types in terms of the percentage of gutta-percha area at any level (P > 0.05): apical third, type I: 77.04%, II: 70.48% and III: 77.13%, middle third, type I: 95.72%, II: 93.17%, III: 91.13% and coronal level, type I: 98.30%, II: 98.25%, III: 97.14%. Overall, the percentage of the filling material was lower in the apical third (P < 0.05). No significant differences were found between the C-shaped canal configurations apically; C1: 72.64%, C2: 79.62%, C3: 73.51% (P > 0.05). CONCLUSIONS: The percentage of area filled with gutta-percha was similar in the three radiographic types and canal configuration categories of C-shaped molars. These results show the difficulty of achieving predictable filling of the root canal system when this anatomical variation exists. In general, the apical third was less completely filled.
机译：目的：参照X线片的影像学特征和C形管的结构，分析采用改良的MicroSeal技术填充的C形磨牙牙根的牙胶填充面积。方法：根据放射影像学特征，将23颗具有C形根的下颌第二磨牙分为I型-合并，II型-对称和III型-不对称。使用MicroSeal系统的改良技术将根管填满。从顶点到足下骨平面的距离为600毫米，水平切面为1毫米。使用Kruskal-Wallis检验分析了X线照相类型的根尖，中部和冠状水平的牙胶面积百分比。以类似的方式对从根尖的第三个横截面确定的C形管结构（C1，C2和C3）进行补充分析。结果：无论在任何水平上，牙龈胶合区的百分比在放射学类型之间均无显着差异（P> 0.05）：心尖第三，类型I：77.04％，II：70.48％，III：77.13％，中第三，I型：95.72％，II：93.17％，III：91.13％和冠状位，I型：98.30％，II：98.25％，III：97.14％。总体而言，在心尖的三分之一中填充材料的百分比较低（P <0.05）。在顶端的C形管结构之间没有发现显着差异。 C1：72.64％，C2：79.62％，C3：73.51％（P＞ 0.05）。结论：C形磨牙的三种射线照相类型和管构型类别中，充满牙胶的面积百分比相似。这些结果表明，当存在这种解剖变异时，很难实现可预测的根管系统充盈。总的来说，根尖的三分之一没有完全填充。

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