Factors affecting peri-implant bone loss: a post-five-year retrospective study

Vázquez Álvarez R, Pérez Sayáns M, Gayoso Diz P, García García A. Factors affecting peri-implant bone loss: a post-five-year retrospective study. Clin. Oral Impl. Res. 00, 2014, 19 doi: 10.1111/clr.12416



Although peri-implant bone loss is one of the parameters included in the criteria for determining implant success, its prevention is of vital importance. The goal of this article is to assess the factors that affect peri-implant bone loss.

Material and methods

An observational, longitudinal, retrospective study was conducted in 148 partially edentulous patients rehabilitated with implants and with a follow-up period of 5 years or more. A total of 585 implants were included in the study. Radiographic peri-implant bone loss was compared with radiographic periodontal bone loss, and other characteristics such as prosthesis design, hygiene, and implant size were studied as potential peri-implant bone loss modification factors.


In the univariate analysis, a statistically significant relationship between peri-implant bone loss and gender (P < 0.05), implant system (P < 0.01), reason for extraction (P < 0.05), splinting (P < 0.0001), and distance between the implant platform and the horizontal component of the prosthesis (P < 0.0001) were observed. In multivariate analysis, the relationship between this peri-implant loss and gender (P < 0.05), implant system (P < 0.05), splinting (P < 0.001), and the aforementioned distance (P < 0.01) remains.


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