Clinical and microbiologic findings that may contribute to dental implant failure

Int J Oral Maxillofac Implants. Spring 1990;5(1):31-8.


Clinical and DNA probe analysis were used to evaluate 36 failing implant sites in 13 patients. Failing implants showed evidence of increased mobility and a high incidence of peri-implant radiolucencies in radiographs. The probing depth was greater than 6 mm in 58% of the sites measured. Moderate levels of Actinobacillus actinomycetemcomitans, Bacteroides intermedius, and Bacteroides gingivalis were detected with DNA probe analysis.

MeSH terms

  • Actinobacillus / isolation & purification
  • Adult
  • Bacteroides / isolation & purification
  • DNA Probes
  • Dental Implantation, Endosseous / adverse effects*
  • Dental Implants / adverse effects*
  • Dental Prosthesis Retention
  • Equipment Failure*
  • Humans
  • Movement
  • Periodontitis / microbiology*
  • Prosthesis Failure*


  • DNA Probes
  • Dental Implants