Definition and prevalence of peri‐implant diseases

Abstract Objectives: The aim of the current review was to describe the prevalence of peri‐implant diseases including peri‐implant mucositis and peri‐implantitis. Material and 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 50 implant‐treated subjects exhibiting a function time of 5 years were considered. Results and Conclusion: 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 56% of subjects and in 12% and 43% of implant sites.