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首页> 外文期刊>The International journal of oral & maxillofacial implants >Attachment of oral gram-negative anaerobic rods to a smooth titanium surface: an electron microscopy study.
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Attachment of oral gram-negative anaerobic rods to a smooth titanium surface: an electron microscopy study.

机译：口腔革兰氏阴性厌氧棒附着于光滑的钛表面：电子显微镜研究。

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摘要

PURPOSE: Attachment of bacteria to titanium may differ not only between bacterial species but also between strains within a species. The aim of the present in vitro study was to examine differences in bacterial attachment using 4 gram-negative anaerobic species of bacteria that are considered potential periodontal pathogens. MATERIALS AND METHODS: The attachment of clinical and laboratory strains (n = 23) representing 2 Fusobacterium nucleatum subspecies, Porphyromonas gingivalis, and Prevotella intermedia to smooth, commercially pure titanium was examined using scanning electron microscopy. RESULTS: All bacterial strains were attached to the smooth titanium surface by their outer membrane. F nucleatum cells were poorly attached to the titanium, unlike P gingivalis or P intermedia cells, but only slight differences were observed in the quantity of attached cells between the strains within each bacterial group. DISCUSSION: In favorable conditions, some anaerobes can attach directly to an inert titanium surface. Microbial adhesion and subsequent colonization on the dental implant surface can lead to infection of the peri-implant tissue. CONCLUSION: The results indicated that the avidity of bacterial attachment to a smooth titanium surface varies between species of oral gram-negative anaerobes but not between strains.
机译：目的：细菌与钛的附着不仅在细菌物种之间，而且在物种内的菌株之间也可能不同。本体外研究的目的是使用被认为是潜在牙周病原体的4克阴性厌氧菌来检查细菌附着的差异。材料和方法：使用扫描电子显微镜检查了代表2个核杆菌，亚齿龈卟啉菌和中间普氏杆菌的临床和实验室菌株（n = 23）附着在光滑的商业纯钛上的情况。结果：所有细菌菌株均通过其外膜附着在光滑的钛表面上。 F核细胞与钛的附着力较弱，与齿龈P菌或P中间细胞不同，但是在每个细菌组中，菌株之间的附着细胞数量仅观察到微小差异。讨论：在良好条件下，某些厌氧菌可以直接附着在惰性钛表面上。微生物粘附和随后在牙植入物表面上的定植可导致植入物周围组织的感染。结论：结果表明，细菌附着在光滑的钛表面上的亲和力在口腔革兰氏阴性厌氧菌之间有所不同，但在菌株之间却没有变化。

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