基于生物陶的遮技术对再处理后剩余填充材料量的影响:一个体外研究
Sara Wael Nour1, Abeer Abd Elhakim Elgendy2, Amr Ahmed Bayoumi1
1Endodontics Division, Department of Conservative Dentistry, Faculty of Dentistry, Misr International University, Cairo, Egypt.
European journal of dentistry
|February 4, 2026
概括
使用单技术 (SCT),热垂直压缩 (WVC) 或冷侧压缩 (CLC) 重处理用生物陶密封剂填充的根管,留下了显著的填充残留物. 在所有测试的阻塞技术中,顶端三分之一是清洁最具挑战性的区域.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 牙科材料科学 牙科材料科学
- 恢复性牙科 恢复性牙科
背景情况:
- 生物陶密封剂越来越多地用于根管堵塞,因为它们具有有利的生物特性.
- 有效的根管再处理对于长期治疗的成功至关重要,但对某些材料来说具有挑战性.
- 再处理的效率取决于最初的封闭技术和密封器类型.
研究的目的:
- 量化评估用生物陶密封剂堵塞的根通道再处理后的剩余填充量和分布.
- 为了比较三种堵塞技术的有效性 - - 单形技术 (SCT),热垂直压缩 (WVC) 和冷侧面压缩 (CLC) - - 在再处理中.
- 为了确定残留填充物清除最具挑战性的地区.
主要方法:
- 前 (n=42) 用SCT,WVC或CLC (14个小组) 用生物陶密封剂进行准备和封闭.
- 经过15天的储存后,使用ProTaper通用再处理 (PTUR) 文件进行了再处理,没有溶剂.
- 根被切断,用立体显微镜和ImageJ分析量化冠状,中间和顶端三分之一的残留填充百分比.
主要成果:
- 在三个封闭技术 (p=0.0657) 中,没有发现残留填充百分比的统计学上显著差异.
- 单技术 (SCT) 的残留率最高 (86.31%±14.49%),而冷侧压缩 (CLC) 的残留率最低 (62.66%±31.90%).
- 所有的技术都显示了对顶三分之一的残留量增加,这表明这个区域最难清理.
结论:
- 不管最初的封闭技术如何,在PTUR再处理过程中无法完全去除基于生物陶的填充物.
- 冷侧压缩 (CLC) 与残留填充量最少相关,而单技术 (SCT) 具有最多的残留填充量,尽管在统计学上并不显著.
- 顶端的三分之一一直是生物陶填充根管的再处理过程中清洁的最大挑战.
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