Online OnlyDOI: 10.11607/prd.3384, PubMed-ID: 29447315Seiten: 29-32, Sprache: EnglischFarronato, Davide / Fumagalli, Davide / Asa'ad, Farah / Pasini, Pietro M. / Mangano, Francesco / Rasperini, GiulioThis report describes a failed blade implant after 25 years in function in the left maxilla and the results of histologic analysis of peri-implant tissues. The blade was retrieved, and histologic findings revealed that it was not osseointegrated despite being successfully in function for so many years. The long-term function of blade implants without osseointegration can be attributed to biotolerance exhibited by the implant rather than actual osseointegration.