Incidence of peri-implantitis and oral quality of life in patients rehabilitated with implants with different neck designs: A 10-year retrospective study

Abstract Objectives 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. Materials and 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