Smojver Igor, Bjelica Roko, Ćatić Amir, Budimir Ana, Vuletić Marko, Gabrić Dragana
St. Catherine Specialty Hospital, 10000 Zagreb, Croatia.
Department of Oral Surgery, School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia.
Materials (Basel). 2022 Feb 21;15(4):1597. doi: 10.3390/ma15041597.
Implant-abutment connection (IAC) is a key factor for the long-term success and stability of implant-supported prosthodontic restoration and its surrounding tissues. Misfit between prosthodontic abutment and implant at the IAC leads to technical and biological complications. Two kinds of prosthodontic abutments are currently available on the market: original and third-party abutments. The aim of this pilot study was to test and compare the internal fit (gap) at the implant-abutment interface depending on the abutment fabrication method based on microbial leakage in static conditions and the need for the use of gap sealing material. Two groups of 40 implants were formed on the basis of the type of abutment. In each of the groups of two implant systems, two subgroups of 10 implants were formed. The tested subgroups consisted of 10 implants with sealing material and a negative control subgroups consisting of 10 implants without any sealing material. The test material, GapSeal (Hager and Werken, Duisburg, Germany) was applied in the test subgroups. The implant-abutment assemblies were contaminated with a solution containing and for 14 days under aerobic conditions. Results showed that there was no statistically significant difference regarding the microbial leakage between the original and third-party custom-made abutments, regardless of the use of sealing material. It can be concluded that the abutment fabrication method has no significant influence on sealing efficacy regarding the bacterial and fungal leakage in static conditions.
种植体基台连接（IAC）是种植体支持的修复体及其周围组织长期成功与稳定的关键因素。在IAC处，修复体基台与种植体之间的不匹配会导致技术和生物学并发症。目前市场上有两种修复体基台：原装基台和第三方基台。本初步研究的目的是根据基台制作方法，在静态条件下基于微生物渗漏情况以及是否需要使用间隙封闭材料，测试并比较种植体 - 基台界面处的内部适合度（间隙）。根据基台类型形成两组，每组40枚种植体。在两个种植系统的每组中，又形成两个亚组，每组10枚种植体。测试亚组由10枚使用密封材料的种植体组成，阴性对照亚组由10枚未使用任何密封材料的种植体组成。测试亚组使用了测试材料GapSeal（德国杜伊斯堡的Hager and Werken公司生产）。种植体 - 基台组件在有氧条件下用含有[具体成分未给出]的溶液污染14天。结果表明，无论是否使用密封材料，原装基台和第三方定制基台之间在微生物渗漏方面均无统计学显著差异。可以得出结论，在静态条件下，基台制作方法对细菌和真菌渗漏的密封效果没有显著影响。
