Sealing ability of oval-shaped canals filled using the System B heat source with either gutta-percha or Resilon: an ex vivo study using a polymicrobial leakage model

被引:11
作者
De-Deus, Gustavo
Audi, Cristiane
Murad, Cristiana
Fidel, Sandra
Sergio Fidel, Rivail Antonio
机构
[1] Univ Estado Rio De Janeiro, Dept Endodont, Rio De Janeiro, Brazil
[2] Veiga Almeda Univ, Rio De Janeiro, Brazil
来源
ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTOLOGY | 2007年 / 104卷 / 04期
关键词
D O I
10.1016/j.tripleo.2007.03.028
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Objective. The present study systematically compared the sealing ability of oval-shaped canals filled using the System B heat source with either gutta-percha/sealer or Resilon/Epiphany. Study design. Eighty mandibular incisors with oval-shaped canals were selected after buccolingual and mesiodistal radiographs and divided into 3 experimental groups (n = 20). The teeth were obturated as follows: G1: gutta-percha/Pulp Canal Sealer EWT using cold lateral condensation; G2: gutta-percha/Pulp Canal Sealer EWT using the System B heat source; and G3: Resilon tips and Epiphany sealer using the System B heat source. The roots were mounted in a bacterial leakage model and the system was checked daily during the following 9 weeks. The log rank test was used to analyze the leakage data at intervals of 3, 6, and 9 weeks. The level of significance was set at P < .05. Results. Seven samples of G1 (35%) and 5 samples (20%) each of G2 and G3 were fully contaminated after 9 weeks. Data showed no significant difference between traditional gutta-percha/sealer and Resilon/Epiphany (P > .05). However, both materials showed significant difference to cold lateral condensation when System B heat source was used (P < .05). Conclusions. The results demonstrated that Resilon/Epiphany combination do not improve the bacterial leakage resistance compared with traditional gutta-percha/sealer fillings.
引用
收藏
页码:E114 / E119
页数:6
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