title: Definition and prevalence of peri-implant diseases.
abstract: OBJECTIVE
  The aim of the current review was to describe the prevalence of peri-implant diseases including peri-implant mucositis and peri-implantitis.
  
  
  METHODS
  A MEDLINE search (PubMed) until December 2007 was conducted and different keywords related to the prevalence of peri-implant diseases were used. Cross-sectional and longitudinal studies including > or =50 implant-treated subjects exhibiting a function time of > or =5 years were considered.
  
  
  CONCLUSIONS
  The current review revealed that only a few studies provided data on the prevalence of peri-implant diseases. Cross-sectional studies on implant-treated subjects are rare and data from only two study samples were available. Peri-implant mucositis occurred in approximately 80% of the subjects and in 50% of the implants. Peri-implantitis was found in 28% and > or =56% of subjects and in 12% and 43% of implant sites.
authors: Clinic for Periodontology, Endodontology and Cariology, University of Basel, Basel, Switzerland. N.Zitzmann@unibas.ch
authors: Nicola U
authors: NU
authors: Zitzmann
authors: Tord
authors: T
authors: Berglundh
mesh_terms: D003430:Cross-Sectional Studies; D015921:Dental Implants; D005060:Europe / Q000453:epidemiology; D005891:Gingivitis / Q000453:epidemiology; D006801:Humans; D008137:Longitudinal Studies; D010518:Periodontitis / Q000453:epidemiology*; D015995:Prevalence
chemical_list: D015921:Dental Implants