Prospective controlled clinical study investigating long-term clinical parameters, patient satisfaction, and microbial contamination of zirconia implants.

Background: Dental implants made of zirconia ceramics experienced a renaissance in the past years. However, there is still a lack in reliable long-term clinical data.

Purpose: Aim of the present prospective clinical study was to analyze the dental implants made from zirconia, regarding their clinical performance compared to natural teeth (control).