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首页> 外文期刊>American journal of dentistry >Bacterial leakage in external hexagon implants with and without the interposition of a sealing-connector
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Bacterial leakage in external hexagon implants with and without the interposition of a sealing-connector

机译：外六角植入物的细菌泄漏，没有插入密封连接器

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Purpose: To investigate whether the interposition of a sealing-connector was able to reduce the bacterial leakage in external hexagon implants. Methods: 20 implants with external hexagon connection were used. Ten Test implant-abutment assemblies were connected with the interposition of a sealing-connector molded in the exact shape of the two opposed surfaces. Ten Control implant-abutment assemblies were connected with no sealing-connector interposed. Two types of bacteria were introduced into the internal portion of the implant, before placing the connector. The study lasted 28 days. Results: All control specimens, seeded with P. aeruginosa (PA) and A. actynomycetemcomitans (AA), showed contamination of the culture medium, indicative of microbial leakage. In the Test specimens, three instances of contaminated specimens were found in the samples seeded with PA and two contaminated specimens in the ones seeded with AA, for a total of five contaminated samples out of 10. The use of the sealing-connector was able to prevent bacterial leakage in half of the samples (50%). The leakage in both groups occurred mainly in the last week of the experiment. Probably, a longer period, under the conditions of this experiment, is necessary for the migration of the bacteria, and, furthermore, an observation period of 7 or 14 days may not be enough to show microbial contamination.
机译：目的：研究密封连接器的插入是否能够降低外六角植入物中的细菌泄漏。方法：使用20种带外六角形连接的植入物。 10个测试植入抵接组件与插入在两个相对的表面的精确形状中成型的密封连接器的插入连接。 10个控制植入式邻接组件与插入没有密封连接器连接。在放置连接器之前，将两种类型的细菌引入植入物的内部部分。这项研究持续了28天。结果：所有对照样品，采用P.铜绿假单胞菌（PA）和A. actynomycetemco1（AA），显示出培养基的污染，表明微生物渗漏。在试样中，在使用AA播种的PA和两种污染样品的样品中发现了三种污染样品的污染样品，总共5种污染样品。密封连接器的使用能够防止细菌渗漏在一半的样品（50％）。两组泄漏主要发生在实验的最后一周。可能，在该实验的条件下，对于迁移细菌来说，较长的时间是必要的，此外，7或14天的观察期可能不足以显示微生物污染。

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