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Two-piece zirconia implants supporting all-ceramic crowns: a prospective clinical study
Norbert Cionca1, Nada Müller1, Andrea Mombelli1
1Division of Periodontology and Oral Pathophysiology, School of Dental Medicine, University of Geneva, Geneva, Switzerland.
Clinical Oral Implants Research
|March 27, 2014
Summary
This study shows a new all-ceramic implant system is safe and effective for replacing missing teeth in partially edentulous patients. The system demonstrated a high survival rate with minimal complications after one year.
Area of Science:
- Dental Implantology
- Biomaterials Science
- Prosthodontics
Background:
- Partially edentulous patients require reliable tooth replacement solutions.
- All-ceramic implant systems offer potential aesthetic and biocompatible alternatives to traditional metal implants.
Purpose of the Study:
- To assess the safety and efficacy of a novel two-piece zirconia implant system.
- To evaluate the clinical performance of all-ceramic crowns supported by zirconia implants.
Main Methods:
- A prospective clinical study involving 32 partially edentulous patients.
- Placement of 49 two-piece zirconia implants with zirconia abutments and full-ceramic crowns.
- Follow-up period of approximately 588 days post-loading, with re-evaluation at 1 year.
Main Results:
- The cumulative implant survival rate at 1 year post-loading was 87%.
- No soft tissue, bone loss (>2 mm), or esthetic complications were reported.
- A 4% technical complication rate was observed; all failures were due to aseptic loosening.
Conclusions:
- The evaluated all-ceramic implant system is a viable option for single-tooth replacement in the posterior region.
- Failures were attributed to aseptic loosening, highlighting a specific area for potential improvement.
