Clinical and Radiographic Evaluation of OsseoSpeed EV Implants

Area of Science:

• Dental Implantology
• Prosthodontics
• Oral Surgery

Background:

• Dental implants are crucial for tooth replacement.
• Evaluating implant survival and bone loss is vital for clinical decision-making.
• The OsseoSpeed EV implant system's performance in diverse clinical settings requires assessment.

Purpose of the Study:

• To assess the survival rate and marginal bone loss of OsseoSpeed EV implants.
• To evaluate implant performance in a non-university clinical setting over an 8-year period.
• To identify factors influencing implant survival and bone loss.

Main Methods:

• Retrospective investigation of medical and radiologic records for EV implants placed between 2013-2021.
• Independent data collection on 11 potential influencing variables.
• Radiographic measurement of marginal bone levels and statistical analysis using Cox regression models.

Main Results:

• A total of 597 EV implants in 235 patients were analyzed with a mean follow-up of 42.1 months.
• The overall implant survival rate was 92.6%, with 7.4% implant loss.
• Significant risk factors for failure included bruxism, periodontitis history, narrow implant diameter, and immediate postextraction placement.

Conclusions:

• The OsseoSpeed EV implant system achieved a medium-term survival rate of 92.6%.
• Most implants showed minimal to no marginal bone loss, indicating good mid-term stability.
• The EV implant system is a viable option for routine dental practice, though risk factors should be considered.