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Sarkonen N, Könönen E, Eerola E, et al. Characterization of Actinomyces species isolated from failed dental implant fixtures. Anaerobe. 2005;11(4):231-7doi: 10.1016/j.anaerobe.2005.01.002.
Sarkonen, N., Könönen, E., Eerola, E., Könönen, M., Jousimies-Somer, H., & Laine, P. (2005). Characterization of Actinomyces species isolated from failed dental implant fixtures. Anaerobe, 11(4), 231-7. https://doi.org/10.1016/j.anaerobe.2005.01.002
Sarkonen, Nanna, et al. "Characterization of Actinomyces species isolated from failed dental implant fixtures." Anaerobe vol. 11,4 (2005): 231-7. doi: https://doi.org/10.1016/j.anaerobe.2005.01.002
Sarkonen N, Könönen E, Eerola E, Könönen M, Jousimies-Somer H, Laine P. Characterization of Actinomyces species isolated from failed dental implant fixtures. Anaerobe. 2005 Aug;11(4):231-7. doi: 10.1016/j.anaerobe.2005.01.002. Epub 2005 Apr 07. PMID: 16701573.
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Anaerobe. 2005 Aug;11(4):231-7. doi: 10.1016/j.anaerobe.2005.01.002. Epub 2005 Apr 07.

Characterization of Actinomyces species isolated from failed dental implant fixtures.

Anaerobe

Nanna Sarkonen, Eija Könönen, Erkki Eerola, Mauno Könönen, Hannele Jousimies-Somer, Pekka Laine

Affiliations

  1. Anaerobe Reference Laboratory, Department of Microbiology, National Public Health Institute (KTL), Mannerheimintie 166, FIN-00300 Helsinki, Finland. [email protected]

PMID: 16701573 DOI: 10.1016/j.anaerobe.2005.01.002

Abstract

In the oral cavity, Actinomyces form a fundamental component of the indigenous microflora, being among initial colonizers in polymicrobial biofilms. However, some differences may exist between different species in terms of their attachment not only to teeth but also to biomaterials. In this study we investigated the distribution of Actinomyces in 33 dental implant fixtures explanted from 17 patients. The identification was based on comprehensive biochemical testing and gas-liquid chromatography and when needed, 16S rRNA sequencing. Actinomyces was the most prevalent bacterial genus in these failed implants, colonizing 31/33 (94%) of the fixtures. Proportions of Actinomyces growth of the total bacterial growth in the Actinomyces-positive fixtures varied from 0.01% up to 75%. A. odontolyticus was the most common Actinomyces finding, present in 26/31 (84%) Actinomyces-positive fixtures. Actinomyces naeslundii and A. viscosus were both detected in 10/31 (32%) and A. israelii in 7/31 (23%) fixtures. Other Actinomyces species, including A. georgiae, A. gerencseriae and A. graevenitzii, were detected less frequently. Our results suggest that Actinomyces species are frequent colonizers on failed implant surfaces, where A. odontolyticus was the far most prominent Actinomyces species.

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