title: Incidence of peri-implantitis and oral quality of life in patients rehabilitated with implants with different neck designs: A 10-year retrospective study.
abstract: OBJECTIVE
  To evaluate peri-implant bone loss, the presence of peri-implantitis, aesthetic satisfaction, and quality of life in patients with implant-based prosthetic restorations using implants with or without smooth necks, placed in different bone positions.
  
  
  METHODS
  400 patients received 1,244 implants: 515 with smooth neck monitored over an average of 6.44 ± 2.55 years and 729 without smooth neck monitored over 5.61 ± 2.52 years. Radiographic bone loss, presence of periimplantitis, implant loss, quality of life (OHIP-14), and patient satisfaction with prosthetic esthetics were evaluated, comparing groups.
  
  
  RESULTS
  120 implants developed peri-implantitis, 15 with a 2.5 mm smooth neck and 105 without smooth neck. Patients without smooth-necked implants showed a worse quality of life with statistically significant difference (p < 0.001). Patient satisfaction with prostheses was higher among the group without smooth neck.
  
  
  CONCLUSIONS
  Implants with smooth polished necks would appear to suffer less bone loss and peri-implantitis, and lead to better patient quality of life. However, implants without smooth necks placed crestally led to higher patient satisfaction with aesthetics.
authors.affiliation: Department of Oral Medicine, University of Murcia, Murcia, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Sánchez-Siles
authors.affiliation: Private Dental Practice, Murcia, Spain.
authors.forename: D
authors.initials: D
authors.lastname: Muñoz-Cámara
authors.affiliation: Private Dental Practice, Murcia, Spain.
authors.forename: N
authors.initials: N
authors.lastname: Salazar-Sánchez
authors.affiliation: Private Dental Practice, Murcia, Spain.
authors.forename: J F
authors.initials: JF
authors.lastname: Ballester-Ferrandis
authors.affiliation: Department of Oral Surgery, University of Murcia, Murcia, Spain. Electronic address: fcamacho@um.es.
authors.forename: F
authors.initials: F
authors.lastname: Camacho-Alonso
mesh_terms: D003758:Dental Implantation, Endosseous / Q000379:methods* / Q000592:standards; D017267:Dental Prosthesis Design; D006801:Humans; D015994:Incidence; D009909:Oral Health / Q000592:standards*; D057873:Peri-Implantitis / Q000453:epidemiology* / Q000209:etiology; D011788:Quality of Life; D012189:Retrospective Studies; D016896:Treatment Outcome
keywords: Neck designs; Oral quality of life; Patient satisfaction; Peri-implantitis; Smooth neck