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Abstract：
This study aimed to assess the adaptability and penetration depth capacity of recent bioceramic systems, including regular EndoSequence (BC) versus HiFlow (BCH) sealers in the presence of BC points. A total of 54 single-rooted teeth were instrumented and obturated with either the cold or warm compaction technique (n = 9), using either BC, BCH, or AH Plus (AHP) combined with BC points. The adaptation, film thickness, and gaps/voids were evaluated by scanning electron microscopy. The sealer/dentin interface was evaluated by Raman spectroscopy, and depth penetration was evaluated by a confocal laser scanning microscope. According to the normality test, the data were statistically analyzed by ANOVA or Kruskal-Wallis and Mann-Whitney U tests at p < 0.05. BCH sealer showed the significantly thinnest film with the greatest flow (p > 0.001), with further improvement when subjected to the warm compaction technique. Moreover, it exhibited close adaptation with deep penetration into radicular dentin, forming a tag-like structure. The Raman spectra also indicated close contact with the dentin surface. The use of BC sealer with BC points exhibited homogenous, single-unit obturation, either with a cold or warm technique. Furthermore, the use of the warm compaction technique with BCH sealer achieved a gap-free interface associated with tag-like structures, which exhibit the monoblock phenomenon.
摘要：
本研究旨在评估最近的生物陶瓷系统的适应性和穿透深度能力，包括在BC点存在下的常规EndoSequence(BC)与HiFlow(BCH)封闭剂。用冷压实或热压实技术（n=9）对总共54颗单根牙齿进行了仪器和封闭，使用任何一个BC，BCH,或AHPlus（AHP）结合BC点。适应,薄膜厚度,和间隙/空隙通过扫描电子显微镜评估。通过拉曼光谱评估密封剂/牙本质界面，和深度穿透通过共聚焦激光扫描显微镜进行评估。根据正态检验,数据通过方差分析或Kruskal-Wallis和Mann-WhitneyU检验进行统计学分析,p<0.05。BCH封口机显示出显着最薄的薄膜，流量最大（p>0.001），当经受温压实技术时，进一步改进。此外，它表现出紧密的适应性，并深度渗透到神经根牙本质中，形成标签状结构。拉曼光谱还表明与牙本质表面紧密接触。使用具有BC点的BC密封剂表现出均匀的，单单元闭塞，用冷或热的技术。此外，使用BCH密封器的热压实技术实现了与标签状结构相关的无间隙界面，表现出整体现象。
