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20 March 2019

Perimplantitis: is still a concern in basical clinical settings?

Massimo Gagliani


In the study a huge amount of implants 6129 in 2127 patients were evaluated using the US dental school database. It is particularly interesting this clinical setting, as it could be compared to the normal clinical condition in which dental implants are placed; expert dental surgeons in clinical trials might create a positive bias in the evaluation of the final results.  
The study protocol was planned to assess presence of radiographic bone loss, defined as >2mm longitudinal increase in the distance between the implant shoulder and the supporting peri‐implant bone level (PBL) between time of placement and follow‐up.  “Intact” implants had no or ≤2mm PBL increase from baseline.
Clinical notes were reviewed to corroborate a definitive peri‐implantitis diagnosis at implants with progressive bone loss.  
The results disclosed a  prevalence of peri‐implantitis over an average follow‐up of almost 2 years around 34% on the patient and 21% on the implant level. Among the risk factors, ill‐fitting/ill‐designed fixed and cement‐retained restorations were considered of the greater importance, in addition, history of periodontitis emerged as the principal risk factors for peri‐implantitis.

For additional informations: 
Peri‐implantitis prevalence, incidence rate and risk factors: A study of electronic health records at a U.S. dental school

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