Suarez, María J.Pérez, CristinaPeláez Rico, JesúsLópez Suárez, CarlosGonzalo Íñigo, Esther2024-01-312024-01-312018-07-24Suarez MJ, Perez C, Pelaez J, Lopez-Suarez C, Gonzalo E. A Randomized Clinical Trial Comparing Zirconia and Metal-Ceramic Three-Unit Posterior Fixed Partial Dentures: A 5-Year Follow-Up. J Prosthodont. 2019 Aug;28(7):750-756.1059-941X10.1111/jopr.12952https://hdl.handle.net/20.500.14352/97374Purpose: To compare the survival, success rates, and biological/technical complications of posterior metal-ceramic (MC) and zirconia fixed partial dentures (FPDs). Materials and Methods: A total of 40 patients requiring 40 posterior FPDs were randomly assigned to receive 20 zirconia and 20 MC restorations. The restorationswere examined 1 week (baseline) and 1, 3, and 5 years after the end of treatment. Technical and biological outcomes were compared. Data were statistically analyzed using the Wilcoxon signed-rank and Mann-Whitney U tests. Results:The survival rates of both groups were 100%, and the success rates were80% (zirconia) and 100% (MC). No biological complications were observed. Minorchipping was found in 20% of the zirconia restorations. No differences in periodontal parameters were observed between groups. Conclusions: Zirconia FPDs exhibited the same survival rate (100%) as MC FPDs after 5 years; however, the success rate was 80%, because an increased rate of chippingwas observed in zirconia restorations.engjournal article1532-849Xhttps//doi.org/10.1111/jopr.12952https://onlinelibrary.wiley.com/doi/10.1111/jopr.12952open access616.314-089.28615.46ChippingFixed partial denturesMetal-ceramicSurvivalZirconiaPrótesis dentalMateriales dentales3213.13 Ortodoncia-Estomatología