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首页> 外文期刊>International endodontic journal >Comparison of coronal bacterial leakage between immediate versus delayed post-space preparation in root canals filled with Resilon/Epiphany.
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Comparison of coronal bacterial leakage between immediate versus delayed post-space preparation in root canals filled with Resilon/Epiphany.

机译：比较在用Resilon / Epiphany填充的根管中立即进行和延迟后空间准备后冠状细菌渗漏的情况。

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AIM: To compare the sealing ability of Resilon/Epiphany after immediate versus delayed post-space preparation using an ex vivo bacterial leakage model. METHODOLOGY: Eighty extracted, decoronated, single-rooted human maxillary teeth were randomly divided into two experimental groups and two control groups (n = 20). Root canals were prepared in a standard manner with Sequence nickel-titanium rotary files to a final apical size of 50, .06 taper. Root canals in the experimental groups were filled with Resilon/Epiphany using a warm vertical compaction technique. In group 1, the post-space was prepared immediately and in group 2 the post-space was prepared 5 days later. Positive controls were filled with Resilon master cones without sealer. The negative controls were not obturated but the entire root surface including the orifices and foramina were sealed with fingernail polish. Leakage was examined at different time intervals using a dual-chamber bacterial microleakage model. The marker microorganism used was Streptococcus mutans. RESULTS: All positive controls leaked within 3 days. All negative controls showed no leakage at each time interval. All experimental specimens leaked within 14 days. Statistical analysis showed that there was no difference in microleakage between the two experimental groups at each time interval. CONCLUSION: In this ex vivo study, there was no significant difference between immediate and delayed post-space preparation using Resilon/Epiphany. Both groups failed to provide an adequate apical seal regardless of the timing of the post-space preparation.
机译：目的：使用离体细菌渗漏模型比较即时和延迟空间准备后Resilon /主显节的密封能力。方法：将80颗拔除，去甲，单根的人上颌牙随机分为两个实验组和两个对照组（n = 20）。用Sequence镍钛旋转锉以标准方式制备根管，根尖的最终尺寸为50，.06锥度。实验组中的根管使用温暖的垂直压实技术填充了Resilon / Epiphany。在第1组中，立即准备了后空间，在第2组中，5天后准备了后空间。阳性对照充满无密封剂的Resilon主锥。阴性对照没有阻塞，但是用指甲油密封了整个根部表面，包括孔和孔。使用双室细菌微渗漏模型以不同的时间间隔检查渗漏。使用的标记微生物是变形链球菌。结果：所有阳性对照在3天内泄漏。所有阴性对照在每个时间间隔均无泄漏。所有实验标本在14天内泄漏。统计分析表明，在每个时间间隔，两个实验组之间的微渗漏没有差异。结论：在这项离体研究中，使用Resilon / Epiphany进行即时和延迟的空间后准备之间没有显着差异。两组患者均未提供足够的根尖密封，无论准备空间后的时间如何。

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