Journal of Prosthodontics News
Zirconia Full-Arch Implant Prostheses
Now online in the Journal of Prosthodontics, a study on survival and complication rates of monolithic zirconia prostheses, co-authored by ACP member Konstantinos Chochlidakis, DDS, MS, FACP.
Improvements in CAD/CAM technology, along with the need to overcome the chipping of the layering ceramic have resulted in increased use of monolithic or modified monolithic zirconia as a prosthetic material for the fabrication of implant-supported fixed complete dental prostheses (IFCDPs). The dimensions of the IFCDPs also constitute one of the most critical factors that may affect the fracture resistance. However, the long-term evidence that currently exists for the thickness dimensions of zirconia IFCDPs is insufficient due to the limited follow-up period of the available studies.
This retrospective study assessed the survival and complication rates of 115 monolithic zirconia IFCDPs with a 1-6 year follow-up. A secondary outcome was to measure the cross-sectional dimensions (prosthetic space) of those IFCDPs and to correlate potential technical complications with the prosthetic space dimensions.
One hundred fifteen edentulous jaws (71 patients) underwent complete-arch implant treatment with a digital workflow and were rehabilitated with monolithic zirconia IFCDPs. Out of the 115 zirconia IFCDPs, 2 fractured, yielding a 98.6% survival rate up to a 6-year follow-up. The most common minor technical complications were loss of screw access channel filling and porcelain chipping for the modified monolithic IFCDPs. There was no significant association between the thickness of the zirconia prosthesis and the encountered prosthesis fractures according to Fisher's exact test.
Papaspyridakos P, Sinada N, Ntovas P, Barmak AB, Chochlidakis K. Zirconia full-arch implant prostheses: Survival, complications, and prosthetic space dimensions with 115 edentulous jaws. J Prosthodont. 2024; 1–10. https://doi.org/10.1111/jopr.13922
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