在对乳牙进行根管治疗期间,目前很难实现无空隙闭塞。在这项研究中,Bio-CPulpecto(Angelus,罗勒,Londrina,巴拉那,巴西)和氧化锌丁香酚,或\"ZOE\"(DenPro,Precvest,纽约,NY,美国),使用几种体外技术进行了比较。因此,本体外研究使用了30颗乳前牙。方差分析(ANOVA),包括多重比较程序(Holm-Sidak方法,邓恩的方法,或Tukey测试),被使用。在显微CT上,Bio-CPulpecto表现出比ZOE更高的空隙率(10.3±3.8%,和3.5±1.3%),分别为(p<0.05)。数字显微镜,与ZOE组(2.7±2.8%)相比,BC组(13.2±26.7%)的总空隙百分比更高(p<0.05).有了CLSM,Bio-CPulpecto的平均肾小管穿透深度均高于ZOE(p<0.05)。SEM图像显示,在三分之二的时间内,两组中的牙本质小管中都没有标签。此外,与ZOE(1.8±0.13mm)相比,Bio-C(2.657±0.06mm)的流动性具有更高的统计学意义(p<0.05)。这项研究的结果表明,ZOE和Bio-CPulpecto似乎都不符合乳牙理想根管充填糊剂的标准。本研究通过确定Micro-CT,数字显微镜,SEM,和CLSM有助于我们对乳牙填充过程的理解。需要对乳牙根管闭塞的机制进行更深入的研究,以实现幼儿长期成功的根管治疗。
A void-free obturation during root canal treatment on primary teeth is currently very difficult to attain. In this study, the pulpectomy filling abilities of Bio-C Pulpecto (Angelus, Basil, Londrina, Paraná, Brazil) and of zinc oxide eugenol, or \"ZOE\" (DenPro, Prevest, New York, NY, USA), were compared using several in vitro techniques. Therefore, 30 primary anterior teeth were used in the present in vitro study. Analysis of variance (ANOVA), including a multiple comparison procedure (Holm-Sidak method, Dunn\'s Method, or Tukey test), was used. On micro-CT, Bio-C Pulpecto exhibited higher void percentages than did ZOE (10.3 ± 3.8%, and 3.5 ± 1.3%), respectively (p < 0.05). With digital microscopy, higher total void percentages were found in the BC (13.2 ± 26.7%) group compared to the ZOE (2.7 ± 2.8%) group (p < 0.05). With the CLSM, mean tubular penetration depths were higher for Bio-C Pulpecto than for ZOE in all canal thirds (p < 0.05). SEM images demonstrated no tags into dentinal tubules in either group throughout the three thirds. Moreover, higher statistically significant flowability was found for Bio-C (2.657 ± 0.06 mm) compared to ZOE (1.8 ± 0.13 mm) (p < 0.05). The findings of this study indicate that neither ZOE nor Bio-C Pulpecto appears to meet the criteria for an ideal root canal filling paste for primary teeth. This study laid the groundwork for future research by determining how micro-CT, digital microscopy, SEM, and CLSM contribute to our understanding of the filling process of primary teeth. More thorough research on the mechanism of root canal obturation on primary teeth is required to achieve a long-term successful root canal therapy in young children.