寒冷侧向与温暖垂直冷凝的三维填充质量:基于微型CT和CBCT的系统审查和元分析
Mahmood Dashti1, Niloofar Ghadimi2, Turgut Yagmur Yalc N3
1Dentofacial Deformities Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
European endodontic journal
|February 13, 2026
概括
温暖的垂直凝结 (WVC) 提供了比冷的横向凝结 (CLC) 总体上更好的内牙闭塞质量. 然而,由于研究异质性显著,证据证明WVC在顶点三分之一中的优势仍然不确.
科学领域:
- 牙周内学和牙科材料科学 牙科材料科学
- 生物材料和牙科成像技术
背景情况:
- 牙内膜堵塞旨在实现三维 (3D) 密封,以防止细菌进入.
- 寒冷横向凝结 (CLC) 和温暖垂直凝结 (WVC) 是常见的阻塞技术,报告的有效性各不相同.
- 评估闭塞质量需要先进的成像技术,如微型计算机断层扫描 (Micro-CT) 和圆束计算机断层扫描 (CBCT).
研究的目的:
- 系统地比较CLC与WVC的内牙闭塞疗效.
- 为了评估3D堵塞质量,包括空洞体积,皮适应和填充完整性.
- 通过元分析综合微CT和CBCT研究的定量数据.
主要方法:
- 在主要数据库 (PubMed,Embase,Scopus,Web of Science) 进行系统的文献搜索,直到2024年12月.
- 纳入标准:使用微CT或CBCT进行CLC与WVC的比较研究,并提供定量结果.
- 随机效应的元分析由于高异质性 (I2=80%),计算标准化平均差异 (SMD) 和95%置信区间 (CI).
主要成果:
- 与CLC (SMD=-2.19,p=0.02) 相比,WVC的整体闭塞质量明显优越.
- 在WVC和CLC (SMD=-0.79,p=0.13) 之间的顶点三分之一中,没有发现闭塞质量的统计学上显著差异.
- WVC表现出更好的适应性和更少的空隙,但密封器挤出风险更高;CLC表现出更多的空隙和更差的适应性,特别是在复杂的道中.
结论:
- 在全通道长度上,WVC 实现了卓越的堵塞质量,但对顶端三分之一的证据仍然没有确定性.
- 研究中的高异质性 (I2=80-85%) 限制了对聚合估计的信心,并强调了方法标准化的需要.
- 应该谨慎地解释这些发现,强调需要在未来对内牙闭塞技术进行标准化研究.
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