title: Prevalence of Peri-Implant Mucositis and Peri-Implantitis in Patients Treated with a Combination of Axial and Tilted Implants Supporting a Complete Fixed Denture.
abstract: OBJECTIVE
  The aim of this retrospective study was to assess the incidence and prevalence of peri-implant mucositis and peri-implantitis in patients with a fixed full-arch prosthesis supported by two axial and two tilted implants.
  
  
  METHODS
  Sixty-nine patients were included in the study. Each patient received a fixed full-arch prosthesis supported by two mesial axial and two distal tilted implants to rehabilitate the upper arch, the lower arch, or both. Three hundred thirty-six implants for 84 restorations were delivered. Patients were scheduled for follow-up visits every 6 months in the first 2 years and yearly after. At each follow-up visit peri-implant mucositis and peri-implantitis were diagnosed if present.
  
  
  RESULTS
  The overall follow-up range was from 12 to 130 months (mean 63,2 months). Three patients presented peri-implantitis. The prevalence of peri-implant mucositis ranged between 0 and 7,14% of patients (5,06% of implants) while the prevalence of peri-implantitis varied from 0 to 4,55% of patients (3,81% of implants).
  
  
  CONCLUSIONS
  The prevalence and incidence of peri-implant mucositis and peri-implantitis are lower than most of the studies in literature. Therefore this kind of rehabilitation could be considered a feasible option, on the condition of adopting a systematic hygienic protocol.
authors.affiliation: Department of Biomedical, Surgical and Dental Sciences, IRCCS Istituto Ortopedico Galeazzi, Università Degli Studi di Milano, Via R. Galeazzi 4, 20161 Milan, Italy.
authors.forename: Nicolò
authors.initials: N
authors.lastname: Cavalli
authors.affiliation: Department of Biomedical, Surgical and Dental Sciences, Research Center in Oral Implantology, IRCCS Istituto Ortopedico Galeazzi, Università Degli Studi di Milano, Via R. Galeazzi 4, 20161 Milan, Italy.
authors.forename: Stefano
authors.identifier: 0000-0001-8428-8811
authors.initials: S
authors.lastname: Corbella
authors.affiliation: Department of Biomedical, Surgical and Dental Sciences, Research Center for Oral Health, IRCCS Istituto Ortopedico Galeazzi, Università Degli Studi di Milano, Via R. Galeazzi 4, 20161 Milan, Italy.
authors.forename: Silvio
authors.initials: S
authors.lastname: Taschieri
authors.affiliation: Department of Biomedical, Surgical and Dental Sciences, Research Center in Oral Implantology, IRCCS Istituto Ortopedico Galeazzi, Università Degli Studi di Milano, Via R. Galeazzi 4, 20161 Milan, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: Francetti
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported / Q000009:adverse effects; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D057873:Peri-Implantitis / Q000175:diagnosis / Q000453:epidemiology*; D015995:Prevalence; D011862:Radiography, Panoramic; D012189:Retrospective Studies; D012307:Risk Factors; D013280:Stomatitis / Q000175:diagnosis / Q000453:epidemiology*
chemical_list: D015921:Dental Implants