Sinhal Tapati Manohar, Shah Ruchi Rani Purvesh, Jais Pratik Subhas, Shah Nimisha Chinmay, Hadwani Krupali Dhirubhai, Rothe Tushar, Sinhal Neha Nilesh
Department of Conservative Dentistry and Endodontics, K M Shah Dental College and Hospital, Sumandeep Vidyapeeth, Vadodara, Gujarat, India.
Department of Oral and Maxillofacial Surgery, K M Shah Dental College and Hospital, Sumandeep Vidyapeeth, Vadodara, Gujarat, India.
Contemp Clin Dent. 2018 Apr-Jun;9(2):164-169. doi: 10.4103/ccd.ccd_722_17.
The aim of this study is to compare and to evaluate sealing ability of newly introduced C-point system, cold lateral condensation, and thermoplasticized gutta-percha obturating technique using a dye extraction method.
Sixty extracted maxillary central incisors were decoronated below the cementoenamel junction. Working length was established, and biomechanical preparation was done using K3 rotary files with standard irrigation protocol. Teeth were divided into three groups according to the obturation protocol; Group I-Cold lateral condensation, Group II-Thermoplasticized gutta-percha, and Group III-C-Point obturating system. After obturation all samples were subjected to microleakage assessment using dye extraction method. Obtained scores will be statistical analyzed using ANOVA test and Tukey's test.
One-way analysis of variance revealed that there is significant difference among the three groups with value (0.000 < 0.05). Tukey's HSD tests for multiple comparisons test shows that the Group II and III perform significantly better than Group I. Group III performs better than Group II with no significant difference.
All the obturating technique showed some degree of microleakage. Root canals filled with C-point system showed least microleakage followed by thermoplasticized obturating technique with no significant difference among them. C-point obturation system could be an alternative to the cold lateral condensation technique.
本研究旨在采用染料渗出法比较并评估新引入的C点系统、冷侧方加压充填法和热塑牙胶充填技术的封闭能力。
60颗拔除的上颌中切牙在牙骨质釉质界下方截冠。确定工作长度,采用K3旋转锉并按照标准冲洗方案进行生物力学预备。根据充填方案将牙齿分为三组;第一组-冷侧方加压充填,第二组-热塑牙胶充填,第三组-C点充填系统。充填后,所有样本采用染料渗出法进行微渗漏评估。所得分数将采用方差分析(ANOVA)检验和Tukey检验进行统计学分析。
单因素方差分析显示三组之间存在显著差异,P值(0.000 < 0.05)。Tukey's HSD多重比较检验表明,第二组和第三组的表现明显优于第一组。第三组的表现优于第二组,但无显著差异。
所有充填技术均表现出一定程度的微渗漏。采用C点系统充填的根管微渗漏最少,其次是热塑充填技术,两者之间无显著差异。C点充填系统可作为冷侧方加压充填技术的替代方法。