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Purpose: The use of osseointegrated implants as an endoestal anchorage device to provide support for dental prostheses is a reliableand widely accepted treatment modality. The purpose of this study was to evaluate the long-term clinical performance of a dentalimplant system.Material and Methods: One hundred fifty-five consecutive patients (71 men, 84 women), aged between 18 and 72 years (mean: 54years) participated in this study. A total of 500 implants (internal; BioHorizons, Birmingham, AL, USA) were inserted. The cases wereexamined retrospectively in order to evaluate the clinical efficiency of BioHorizons implants placed and to determine the success rateof implant supported prostheses after a 5-year follow-up period. All implants were assessed clinically and radiographically on a yearlybasis. Results: The 5-year cumulative success rates for maxillary and mandibular implants were 98.7% and 99.6%, respectively. Among allexamined implants, 4 failed to osseointegrate before loading, they were surgically removed and were considered as early failures.Failed implants were not associated with any clinical signs of periimplant infection with suppuration. The most common prostheticcomplication was abutment screw loosing.Conclusion: Within the limitations of the observation period and sample number, the present findings confirmed sufficient success andsurvival rates for the implants placed in mandible as well as implants placed in the maxilla after a 5-year period. |
