Cluster of bacteria associated with peri-implantitis

G. Rutger Persson, Stefan Renvert

Research output: Contribution to journalArticlepeer-review

225 Citations (Scopus)


Background Information on the microbiota in peri-implantitis is limited. We hypothesized that neither gender nor a history of periodontitis/smoking or the microbiota at implants differ by implant status.

Materials and Methods Baseline microbiological samples collected at one implant in each of 166 participants with peri-implantitis and from 47 individuals with a healthy implant were collected and analyzed by DNA–DNA checkerboard hybridization (78 species). Clinical and radiographic data defined implant status.

Results Nineteen bacterial species were found at higher counts from implants with peri-implantitis including Aggregatibacter actinomycetemcomitans, Campylobacter gracilis, Campylobacter rectus, Campylobacter showae, Helicobacter pylori, Haemophilus influenzae, Porphyromonas gingivalis, Staphylococcus aureus, Staphylococcus anaerobius, Streptococcus intermedius, Streptococcus mitis, Tannerella forsythia, Treponema denticola, and Treponema socranskii (p < .001). Receiver operating characteristic curve analysis identified T. forsythia, P. gingivalis, T. socranskii, Staph. aureus, Staph. anaerobius, Strep. intermedius, and Strep. mitis in peri-implantitis comprising 30% of the total microbiota. When adjusted for gender (not significant [NS]), smoking status (NS), older age (p = .003), periodontitis history (p < .01), and T. forsythia (likelihood ratio 3.6, 95% confidence interval 1.4, 9.1, p = .007) were associated with peri-implantitis.

Conclusion A cluster of bacteria including T. forsythia and Staph. aureus are associated with peri-implantitis.

Original languageEnglish
Pages (from-to)783-793
Number of pages10
JournalClinical Implant Dentistry and Related Research
Issue number6
Publication statusPublished - 2014

Swedish Standard Keywords

  • Dentistry (30216)


  • DNA analysis
  • microbiota
  • peri-implantitis


Dive into the research topics of 'Cluster of bacteria associated with peri-implantitis'. Together they form a unique fingerprint.

Cite this