A 7-year prospective radiographic evaluation of marginal bone level around two different implant systems: a randomized clinical trial.

Objective: The aim of this study was to evaluate the change in marginal bone level radiographically around two different implant systems after 7 years of use.

Material And Methods: Twenty fully edentulous patients were included in the study and randomly assigned to two treatment groups of machined surface implants (Brånemark, n = 40) and rough-surface implants (Xive, n = 40). The implants were early loaded with individual bar-retained overdentures.