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Related Concept Videos

Factors Affecting the Risk of Infection01:26

Factors Affecting the Risk of Infection

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The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
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Related Experiment Video

Updated: Mar 14, 2026

Effects of Mechanical Methods Used in Peri-implantitis Treatment on Implant Surface Decontamination and Roughness
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Effects of Mechanical Methods Used in Peri-implantitis Treatment on Implant Surface Decontamination and Roughness

Published on: March 14, 2025

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Microbial Characteristics of Peri-Implantitis: A Case-Control Study.

Y C de Waal1, H V Eijsbouts2, E G Winkel1,3

  • 1Center for Dentistry and Oral Hygiene, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands.

Journal of Periodontology
|September 27, 2016
PubMed
Summary
This summary is machine-generated.

Certain periodontal pathogens like Prevotella intermedia and Tannerella forsythia are strongly linked to peri-implantitis. Other bacteria, such as Aggregatibacter actinomycetemcomitans, do not appear to play a significant role in this condition.

Keywords:
Bacteriacase-control studiesdental implantsinfectionmicrobiologyperiodontal diseases

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Area of Science:

  • Oral microbiology
  • Periodontology
  • Dental implantology

Background:

  • Peri-implantitis is a prevalent complication of dental implants.
  • Understanding the microbial etiology of peri-implantitis is crucial for effective treatment and prevention.
  • Oral microbiologic characteristics differ between healthy peri-implant conditions and peri-implantitis.

Purpose of the Study:

  • To compare the oral microbiologic profiles of patients with peri-implantitis and those with healthy peri-implant conditions.
  • To investigate the influence of patient- and implant-related factors on these microbial characteristics.

Main Methods:

  • A case-control study involving 85 patients with peri-implantitis and 69 controls with healthy implants.
  • Submucosal microbial samples were collected and analyzed using culturing techniques.
  • Multivariable logistic regression was employed to assess associations between disease status, patient/implant factors, and microbial findings.

Main Results:

  • Peri-implantitis was significantly associated with the presence of Porphyromonas gingivalis, Prevotella intermedia (Pi), Tannerella forsythia (Tf), and Fusobacterium nucleatum.
  • The strongest associations were observed for Pi (OR: 15.1) and Tf (OR: 13.3).
  • Aggregatibacter actinomycetemcomitans and Staphylococcus species showed very low prevalence.

Conclusions:

  • The periodontal pathogens Porphyromonas gingivalis, Prevotella intermedia, Tannerella forsythia, and Fusobacterium nucleatum are implicated in peri-implantitis.
  • Aggregatibacter actinomycetemcomitans and Staphylococcus species do not appear to be significant contributors to peri-implantitis.