title: Surgical Treatment of Peri-Implantitis: A 17-Year Follow-Up Clinical Case Report.
abstract: The purpose of the present case report was to describe the surgical treatment of a peri-implantitis lesion associated with a regenerative approach. A 48-year-old patient came to authors' attention 36 months after the placement of a dental implant (ITI-Bonefit Straumann, Waldenburg, Switzerland) in position 46. A swelling of the peri-implant soft tissues was observed, associated with bleeding on probing and probing depth > 10 mm. A significant peri-implant bone loss was clearly visible on the periapical radiograph. A nonsurgical periodontal supportive therapy was firstly conducted to reduce the inflammation, followed by the surgical treatment of the defect. After mechanical and chemical decontamination with tetracycline solution, a regenerative approach consisting in the application of deproteinized bovine bone mineral (Bio-Oss, Geistlich Pharma AG, Wolhusen, Switzerland) and a collagen membrane (Bio-Gide, Geistlich Pharma AG, Wolhusen, Switzerland) was performed. An antibiotic therapy was associated with the treatment. The 17-year follow-up showed a physiological probing depth with no clinical signs of peri-implant inflammation and bleeding on probing. No further radiographic bone loss was observed. The treatment described in the present case report seemed to show improved clinical results up to a relevant follow-up period.
authors.affiliation: Department of Dental Implants, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda, University of Milan, Via della Commenda 10, 20122 Milan, Italy.
authors.forename: Fabrizio
authors.identifier: 0000-0002-6368-5882
authors.initials: F
authors.lastname: Bassi
authors.affiliation: Department of Dental Implants, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda, University of Milan, Via della Commenda 10, 20122 Milan, Italy.
authors.forename: Pier Paolo
authors.identifier: 0000-0003-3739-1490
authors.initials: PP
authors.lastname: Poli
authors.affiliation: Department of Dental Implants, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda, University of Milan, Via della Commenda 10, 20122 Milan, Italy.
authors.forename: Davide
authors.identifier: 0000-0003-4017-4227
authors.initials: D
authors.lastname: Rancitelli
authors.affiliation: Department of Dental Implants, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda, University of Milan, Via della Commenda 10, 20122 Milan, Italy.
authors.forename: Fabrizio
authors.identifier: 0000-0002-5232-0909
authors.initials: F
authors.lastname: Signorino
authors.affiliation: Department of Dental Implants, Maxillofacial Surgery and Odontostomatology Unit, Fondazione IRCCS Cà Granda, University of Milan, Via della Commenda 10, 20122 Milan, Italy.
authors.forename: Carlo
authors.identifier: 0000-0001-8748-9483
authors.initials: C
authors.lastname: Maiorana