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通过不同的技术和材料制造的树脂基复合材料临时皇冠的边际适应和微漏

Stefan Vulović¹, Bojana Stanisavljev², Nikola Živković³

¹Department of Prosthodontics, School of Dental Medicine, University of Belgrade, Belgrade, Serbia.

European journal of oral sciences

|March 9, 2026

概括

三维打印 (PRNT) 和磨砂 (MILL) 的临时皇冠显示出比传统 (CONV) 皇冠更好的边际适应性和更少的微漏. 基于双固化树脂 (DCRB) 的水泥也改善了与氧化非欧仁醇 (ZONE) 相比的密封性.

科学领域:

牙科材料科学牙科材料科学
牙修复牙修复牙修复牙修复牙修复
生物材料工程生物材料工程

背景情况:

评估临时修复的边际适应和微泄漏对于长期临床成功至关重要.
数字牙科的进步,包括削和3D打印,为临时皇冠提供了替代的制造方法.
选择临时水泥可以影响临时修复的密封能力和边际完整性.

研究的目的:

为了比较传统制造,磨和3D打印临时皇冠的边际适应和微漏.
评估两种临时水泥 - - 氧化非尤根醇 (ZONE) 和基于双固化树脂的 (DCRB) - - 对这些参数的影响.
评估通过热循环老化对不同制造技术和水泥性能的影响.

主要方法:

120个提取的牙被准备用于金冠,并被分配到三个制造组:常规 (CONV),磨砂 (MILL) 和3D打印 (PRNT).
每组根据水泥类型进行细分:ZONE或DCRB.
标本经过热循环处理 (500或5000个循环). 通过扫描电子显微镜评估了边际适应,并通过甲蓝色染料透评估了微泄漏.

主要成果:

与传统生产的 (CONV) 皇冠相比,3D打印 (PRNT) 和磨砂 (MILL) 皇冠的边缘差距明显较小,微漏率较低.
基于双固化树脂 (DCRB) 的水泥导致所有制造组的边际差距较小,并且比氧化非欧仁醇 (ZONE) 水泥的微泄漏率相似或更低.
所有测试组都显示了临床上可接受的120微米门以下的边际差异.

结论:

与传统方法相比,3D打印和削都是临时皇冠的优越制造技术,在边际适应性和密封能力方面.
基于双固化树脂的水泥在临时修复中提供了比氧化非欧仁醇水泥更好的边际完整性和密封性能.
用双固化树脂基水泥凝固的三维打印临时皇冠显示出最有利的边缘适应性和密封性能.

关键词:

这是一个边际调整.微型泄漏微型泄漏暂时的皇冠是临时的.基于树脂的复合材料.

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