Bacterial colonization immediately after installation on oral titanium implants

Fürst, Mirjam M; Salvi, Giovanni E; Lang, Niklaus P; Persson, G Rutger (2007). Bacterial colonization immediately after installation on oral titanium implants. Clinical oral implants research, 18(4), pp. 501-8. Oxford: Wiley-Blackwell 10.1111/j.1600-0501.2007.01381.x

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BACKGROUND: Information on bacterial colonization immediately after dental implant insertion is limited. AIMS: (1) To assess the early colonization on titanium implants immediately after placement and throughout the first 12 post-surgical weeks, (2) to compare the microbiota at interproximal subgingival implant and adjacent tooth sites. MATERIAL AND METHODS: Subgingival plaque samples from implant and neighbouring teeth were studied by checkerboard DNA-DNA hybridization before surgery, 30 min after implant placement, and 1, 2, 4, 8, and 12 weeks after surgery. RESULTS: Comparing bacterial loads at implant sites between 30 min after placement with 1-week data showed that only the levels of Veillonella parvula (P<0.05) differed with higher loads at week 1 post-surgically. Week 12 data demonstrated significantly higher bacterial loads for 15/40 species at tooth sites compared with pre-surgery (P-values varying between 0.05 and 0.01). Between the period immediately after surgery and 12 weeks at implant sites, 29/40 species was more commonly found at 12 weeks. Included among these bacteria at implant sites were Porphyromonas gingivalis (P<0.05), Tannerella forsythia, (P<0.01), and Treponema denticola (P<0.001). Immediately post-surgery 5.9% of implants, and 26.2% of teeth, and at week 12, 15% of implants, and 39.1% of teeth harbored Staphylococcus aureus. Comparing tooth and implant sites, significantly higher bacterial loads were found at tooth sites for 27/40 species after 30 min following implant placement. This difference increased to 35/40 species at 12 weeks post-surgically. CONCLUSIONS: Bacterial colonization occurred within 30 min after implant placement. Early colonization patterns differed between implant and tooth surfaces.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology

UniBE Contributor:

Salvi, Giovanni; Lang, Niklaus Peter and Persson, Gösta Rutger








Eveline Carmen Schuler

Date Deposited:

04 Oct 2013 14:54

Last Modified:

25 Jan 2017 12:17

Publisher DOI:


PubMed ID:


Web of Science ID:


URI: (FactScience: 40021)

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