Republic of Türkiye Social Security Institution (SGK), Ankara, Turkey.
Faculty of Dentistry, Department of Prosthodontics, Ankara Medipol University, Ankara, Türkiye.
Clin Implant Dent Relat Res. 2023 Oct;25(5):807-814. doi: 10.1111/cid.13229. Epub 2023 May 26.
The aim of this study was to investigate the effect of different cements and cementation techniques used in implant-supported restorations and the application of various vent modifications and extraoral replica techniques on the amount of overflowing cement in cemented systems.
In this study, three different abutment designs were used as fully closed, occlusal vented, and occlusal + proximal vented. An extraoral replica was produced by milling the CAD/CAM ceramic block. The number of groups with and without replicas was determined as six (n = 10). For the cementation procedures, three different cements were tested: dual-cure resin, eugenol-free zinc oxide, and polycarboxylate cements. Cobalt-chromium superstructures to be cemented to the implant analog-abutment complex were produced by direct metal laser sintering method. Twenty-four hours after the cementation process, residual cement were measered with Micro-CT. In comparisons between groups, ANOVA test was used for normally distributed variables and Kruskall-Wallis H test was used for non-normally distributed variables at a significance level of p < 0.05.
The difference in residual cement volumes between the groups in terms of both cementation techniques (whether or not to use an extraoral replica and different vent desings) and cement types was found to be statistically significant (p < 0.05). There was significantly less residual cement in all groups that used extraoral replicas than those that did not. As for the cement types, the most residual cement occurred in the resin cement.
The use of extraoral replicas and vent designs on the abutment significantly reduces the amount of residual cement. Regardless of the cementation technique, the type of cement used affects the amount of excess cement.
To reduce residual cement, both the type of cement and the cementation technique used must be considered.
本研究旨在探讨种植体支持修复中使用的不同水泥和粘结技术，以及各种通气孔修改和口腔外复制技术在粘结系统中溢岀水泥量的应用对水泥系统中溢岀水泥量的影响。
本研究中，使用了三种不同的基台设计，分别为全封闭、咬合通气和咬合+近中通气。通过铣削 CAD/CAM 陶瓷块制作口腔外复制体。确定有无复制体的组数为六（n=10）。对于粘结程序，测试了三种不同的水泥：双固化树脂、无丁香油氧化锌和聚羧酸酯水泥。通过直接金属激光烧结法生产要粘结到种植体模拟基台复合体上的钴铬超结构。粘结后 24 小时，用 Micro-CT 测量残留水泥。在组间比较中，对于正态分布变量使用方差分析，对于非正态分布变量使用 Kruskal-Wallis H 检验，显著性水平为 p<0.05。
在粘结技术（是否使用口腔外复制体和不同的通气设计）和水泥类型方面，各组之间残留水泥体积的差异具有统计学意义（p<0.05）。所有使用口腔外复制体的组的残留水泥量均明显少于未使用口腔外复制体的组。至于水泥类型，树脂水泥中残留的水泥最多。
在基台上使用口腔外复制体和通气设计可显著减少残留水泥量。无论粘结技术如何，所用水泥的类型都会影响多余水泥的量。
为了减少残留水泥，必须考虑使用的水泥类型和粘结技术。
