Retrospective review of early bone loss: comparison of three different implant systems

Objectives: Aim: To evaluate bone loss at the time of uncovering between three different implant systems in a retrospective study.
Methods: Material And Methods: 644 implants (390 Nobel Biocare, 190 Straumann, and 64 Biomet 3I implants) placed at one educational institution during the period of January and December of the year of 2013. The records were reviewed by one independent examiner (not involved in the implant placement or uncovering), using periapical radiographs and clinician notes taken on the day of the uncovering procedure. The Uncovering was performed by the same resident who placed the implant.
Results: Results: The percentage of implants with early bone loss was found to be 10%, 5% and 4% for Nobel Biocare, Straumann and Biomet 3I implant systems, respectively. No significant differences for early bone loss at time of uncovering (P value >0.05) were detected between the three systems.
Conclusions: Conclusion: Within the limitations of this retrospective study, the three implant systems showed similar incidence of bone loss at time of uncovering.