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Published on: October 18, 2021
Implant-supported full-arch zirconia-based mandibular fixed dental prostheses. Eight-year results from a clinical
Christel Larsson1, Per Vult Von Steyern
1Department of Materials Science and Technology, Faculty of Odontology, Malmö University, Malmö, Sweden. christel.larsson@mah.se
Objective:
The purpose of this pilot study was to evaluate the long-term clinical performance of implant-supported full-arch zirconia-based fixed dental prostheses (FDPs).
Materials And Methods:
Ten patients received full-arch zirconia-based (Cercon) mandibular FDPs supported by four implants (Astra Tech). Nine patients received 10-unit FDPs and one patient received a 9-unit FDP. The FDPs were cemented onto individually prepared titanium abutments and were evaluated at baseline and after 12, 24, 36 and 96 months.
Results:
Nine patients attended the 8-year follow-up. None of the restorations showed bulk fracture, all FDPs were in use. Fractures of the veneering porcelain were, however, observed in eight patients. A total of 36 out of 89 units (40%) showed such fractures. Patient satisfaction was excellent despite the veneering material fractures.
Conclusion:
Results from this 8-year pilot study suggest that implant-supported full-arch zirconia-based FDPs can be an acceptable treatment alternative.